Names of Shapes
Bigger shapes!
Angles
Triangles
100
I have six sides.
What is a hexagon?
100
This polygon has 10 sides.
What is a decagon?
100
180 degree angle.
What is a straight angle?
100
All sides are equal length.
What is an equilateral triangle?
200
I have 8 sides.
What is an octagon?
200
This polygon has 12 sides.
What is a dodecagon?
200
A 90 degree angle.
What is a right angle?
200
Two sides are the same length.
What is an isosceles triangle?
300
I have 4 sides and only two of my sides are parallel.
What is a trapezoid?
300
This polygon has 7 sides.
What is a heptagon?
300
An angle that is less than 90 degrees.
What is an acute angle?
300
All sides are different lengths.
What is a scalene triangle?
400
I have three sides and they are all different lengths.
What is a scalene triangle?
400
This three-dimensional shape has two congruent bases and all the side faces are rectangles.
What is a prism?
400
An angle that is more than 90 degrees but less than 180 degrees.
What is an obtuse angle?
400
One of my angles is 90 degrees.
What is a right angled triangle?
500
I have four sides. They are all the same length. All opposite sides are parallel but I have no right angles at all!
What is a rhombus?
500
This three-dimensional shape has one single base and all the side faces are triangles that meet at a common vertex.
What is a pyramid?
500
An angle that is more than 180 degrees but less than 360 degrees.
What is a reflex angle?
500
You cannot make a triangle with two of these types of angles in it.
What is obtuse or what is reflex?
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