Shapes are all around us – from the squares and rectangles of buildings, to the circles and triangles in road signs. Riddles about shapes allow us to look at these familiar forms in new and puzzling ways. Solving shape riddles requires visualizing shapes and how they relate to each other in space. Are you up for the challenge? Here are 69 shape riddles with answers to bend your mind!

## Riddles about Squares

Let’s start with some riddles about one of the most common shapes – the square:

### Riddle 1

I have four sides, all the same length. My four angles are all 90 degrees. What am I?

**Answer:** A square.

### Riddle 2

I’m just like a square, but missing one side. What am I?

**Answer:** A triangle.

### Riddle 3

Two of me make a square. I have two long sides and two short sides. What am I?

**Answer:** A rectangle.

### Riddle 4

I look like a square, but my sides are slanted instead of straight. What am I?

**Answer:** A rhombus.

### Riddle 5

I’m a four sided shape with sides of equal length that don’t meet at right angles. What am I?

**Answer:** A rhombus.

### Riddle 6

I have four equal sides, but they can be arranged in different ways. I’m not always a square or a rhombus. What am I?

**Answer:** A quadrilateral.

### Riddle 7

I’m a symmetrical shape with four equal straight sides and interior angles less than 90 degrees. What shape am I?

**Answer:** Kite.

### Riddle 8

I have four right angles, but not all my sides are equal. What am I?

**Answer:** Rectangle.

### Riddle 9

I have four sides, with opposite sides parallel and equal in length. What am I?

**Answer:** Parallelogram.

### Riddle 10

Four of me make a circle. I’m named after my number of sides. What am I?

**Answer:** Square.

## Riddles about Triangles

Now let’s look at some brainteasers about three-sided shapes:

### Riddle 11

I have three straight sides, but only two of my angles are equal. What am I?

**Answer:** Scalene triangle.

### Riddle 12

I have three sides of equal length and three 60 degree angles. What am I?

**Answer:** Equilateral triangle.

### Riddle 13

I’m an equilateral triangle cut in half. What am I?

**Answer:** 30-60-90 triangle.

### Riddle 14

I have two equal length sides with angles that measure 90 and 45 degrees. What am I?

**Answer:** Isosceles right triangle.

### Riddle 15

I have three unequal sides and two 45 degree angles. What am I?

**Answer:** Right scalene triangle.

### Riddle 16

I’m half an equilateral triangle with only one 60 degree angle. What am I?

**Answer:** 30-60 triangle.

### Riddle 17

I have two equal sides and two acute angles. What am I?

**Answer:** Isosceles acute triangle.

### Riddle 18

I have one right angle and two acute angles. What am I?

**Answer:** Right triangle.

### Riddle 19

I have three unequal sides and three unequal angles. What am I?

**Answer:** Scalene obtuse triangle.

### Riddle 20

Put me together with another of my kind, and I’ll form a square. What am I?

**Answer:** Right triangle.

## Riddles about Circles

Circles are another significant shape found everywhere. Can you solve these circular conundrums?

### Riddle 21

I’m round with a hole in the middle. What am I?

**Answer:** Donut or ring.

### Riddle 22

I have a curved continuous line, equidistant from my center point. What am I?

**Answer:** Circle.

### Riddle 23

I’m a circle sliced into equal parts to share. What am I?

**Answer:** Pizza pie.

### Riddle 24

I’m a circle with two different sized semicircles attached on either side. What am I?

**Answer:** Eyeglasses.

### Riddle 25

A circle is divided into equal sections – each section forms what shape?

**Answer:** Pie slices or wedges.

### Riddle 26

What geometric shape has curves but no straight lines?

**Answer:** Circle.

### Riddle 27

I’m round like a circle and look like a ball. Cut me in half and I’m empty inside. What am I?

**Answer:** Orange.

### Riddle 28

I’m round, inflated and can bounce high into the sky. What am I?

**Answer:** Ball or balloon.

### Riddle 29

I’m a toy with a round shape that spins on concrete. Kids run behind me to keep me upright. What am I?

**Answer:** Hula hoop.

### Riddle 30

I’m a circular band worn as jewelry or decoration. What am I?

**Answer:** Ring.

## Riddles about Other Common Shapes

Let’s move on to riddles about some other simple, common shapes:

### Riddle 31

I’m long and thin with parallel sides and rounded ends. What am I?

**Answer:** Cylinder.

### Riddle 32

I’m a solid figure with a circular base and one vertex. What am I?

**Answer:** Cone.

### Riddle 33

I’m a flat shape with three or more straight sides. What am I?

**Answer:** Polygon.

### Riddle 34

I’m a flat shape with four straight sides that are all the same length. What am I?

**Answer:** Square.

### Riddle 35

I’m a prism with a triangular base. What am I?

**Answer:** Triangular prism.

### Riddle 36

I’m a flat shape with five straight sides. What am I?

**Answer:** Pentagon.

### Riddle 37

I’m a solid figure with two circular ends and one curved side. What am I?

**Answer:** Cylinder.

### Riddle 38

I’m a flat shape with six straight sides of equal length. What am I?

**Answer:** Regular hexagon.

### Riddle 39

I’m a solid figure with a circular base, curved sides and a flat top and bottom. What am I?

**Answer:** Cylinder.

### Riddle 40

I’m a flat shape with 7 straight sides. What am I?

**Answer:** Heptagon.

## Riddles about Unusual Shapes

How are you doing so far? Now let’s try some riddles that describe more complex or unusual shapes:

### Riddle 41

I have 5 sides. My top and bottom faces are triangles. My other 3 faces are rectangles. What am I?

**Answer:** Triangular pyramid.

### Riddle 42

I have 4 triangular faces that share a common vertex. What am I?

**Answer:** Tetrahedron.

### Riddle 43

I’m a solid with 8 triangular faces and 6 square faces. What am I?

**Answer:** Octahedron.

### Riddle 44

I’m a star shaped polygon with 5 points. What am I?

**Answer:** Pentagram.

### Riddle 45

I’m a flat shape with 9 straight sides. What am I?

**Answer:** Nonagon.

### Riddle 46

I’m a solid shape with 12 faces – 8 triangular and 4 hexagonal. What am I?

**Answer:** Rhombic dodecahedron.

### Riddle 47

I’m a solid shape with 20 triangular faces and 12 pentagonal faces. What am I?

**Answer:** Icosahedron.

### Riddle 48

I have 10 faces – 2 hexagonal and 8 triangular. What am I?

**Answer:** Decahedron.

### Riddle 49

I’m a shape with 10 sides and 10 congruent angles. What am I?

**Answer:** Decagon.

### Riddle 50

I have 12 faces made of pentagons. What am I?

**Answer:** Dodecahedron.

## Riddles Comparing Shapes

For these riddles, you’ll need to think about the similarities and differences between shapes:

### Riddle 51

A cube and a square are alike in the same way as a rectangle and what other shape?

**Answer:** Cuboid or rectangular prism.

### Riddle 52

A sphere is to a circle as a cone is to what other shape?

**Answer:** Triangle.

### Riddle 53

Hexagon is to triangle as octagon is to what?

**Answer:** Square.

### Riddle 54

Square is to cube as circle is to what?

**Answer:** Sphere.

### Riddle 55

I have one more side than a triangle. Square is to cube as I am to what?

**Answer:** Tetrahedron.

### Riddle 56

A triangle has 3 sides. A square has 4 sides. A hexagon has 6 sides. How many sides do I have if I’m next in the sequence?

**Answer:** Pentagon – 5 sides.

### Riddle 57

Squares and rectangles both have 4 sides but different angles. Triangle and I also have different angles but share a common side length. What shape am I?

**Answer:** Isosceles triangle.

### Riddle 58

I have the same number of sides as a hexagon, but all of my angles are the same. What am I?

**Answer:** Equilateral triangle.

### Riddle 59

A cube and square both have right angles. Sphere is to circle as I am to triangle. What am I?

**Answer:** Cone.

### Riddle 60

I’m similar to a rectangle but my sides are slanted. What am I?

**Answer:** Rhombus or parallelogram.

## Riddles about Shape Patterns

For these riddles, you’ll need to find the pattern among shapes:

### Riddle 61

Triangle, Pentagon, Heptagon. What’s next?

**Answer:** Nonagon – a 9 sided shape.

### Riddle 62

Sphere, Cube, Tesseract. What’s next in this sequence of shapes?

**Answer:** 5-cell or Pentachoron.

### Riddle 63

Square, Rectangle, Parallelogram. What comes next?

**Answer:** Rhombus.

### Riddle 64

Circle, Semicircle, Quarter-circle. What’s next in the sequence?

**Answer:** Eighth-circle.

### Riddle 65

Scalene, isosceles, equilateral. If triangle comes next, what should follow?

**Answer:** Square.

### Riddle 66

Circle, triangle, square, pentagon, hexagon. What comes next in this sequence of shapes?

**Answer:** Heptagon.

### Riddle 67

Triangle, quadrilateral, pentagon, hexagon, heptagon. What shape comes next?

**Answer:** Octagon.

### Riddle 68

Cube, cuboid, pyramid. What 3D shape comes next?

**Answer:** Sphere.

### Riddle 69

Square, cube, tesseract. What 4D shape is next?

**Answer:** Pentachoron.

## Conclusion

In conclusion, shape riddles are a fun way to challenge our spatial reasoning and visualize different geometric forms. Solving these puzzles requires seeing relationships between shapes based on their properties like number of sides, angles, symmetry and dimensions. With practice, we can become more skilled at recognizing patterns and sequences in shapes around us!

From simple squares and triangles to complex polygons and polyhedra, shapes come in an infinite variety. Flexing our mental geometry muscles with shape riddles keeps our minds active and perceptive to the world of forms that surrounds us. Geometry truly is everywhere if we know how to look! What did you learn from solving these 69 shape riddles?