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Math: Middle School: Grades 6, 7 and 8 Quiz - Shapes 2 (Questions)

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Rectangles and squares are 2D shapes, or polygons. Cuboids and cubes are 3D shapes, or polyhedrons. There are many words used to describe polygons and polyhedrons, such as angles, radius and circumference. But what do these words mean? You will have learned about them in your classes; now test how much you have remembered.

Enjoy playing this quiz on shapes.

What is the name of all flat shapes with three or more straight sides?

[ ]	Triangle
[ ]	Polyhedron
[ ]	Polygon
[ ]	Heptagon

How many sides does an octagon have?

[ ]	5
[ ]	6
[ ]	7
[ ]	8

What is a seven sided polygon called?

[ ]	Heptagon
[ ]	Hexagon
[ ]	Pentagon
[ ]	Tetrahedron

Which of these is a regular polygon?

[ ]	Rectangle
[ ]	Right angled triangle
[ ]	Square
[ ]	Circle

What is the name of the triangle with all sides and all angles equal?

[ ]	Right angled triangle
[ ]	Isosceles triangle
[ ]	Equilateral triangle
[ ]	Pyramid

Which of these describes an isosceles triangle?

[ ]	Triangle with 3 equal sides
[ ]	Triangle with 2 equal sides and 2 equal angles
[ ]	Triangle with 3 equal sides and 2 equal angles
[ ]	Triangle with 2 equal sides and 3 equal angles

What is a polyhedron?

[ ]	A 3D shape where all faces are square
[ ]	A 3D shape where all faces are flat polygons
[ ]	A 2D shape where all angles are different
[ ]	A 2D shape with twelve sides

What is the name given to the distance from the center of a polygon or circle to one of the vertices?

[ ]	Circumference
[ ]	Diameter
[ ]	Radius
[ ]	Tangent

What is the name given to a shape that has four faces all of which are equilateral triangles?

[ ]	Tetrahedron
[ ]	Polyhedron
[ ]	Prism
[ ]	Pyramid

10.

How many degrees in a right angle?

[ ]	60^o
[ ]	90^o
[ ]	180^o
[ ]	360^o

Math: Middle School: Grades 6, 7 and 8 Quiz - Shapes 2 (Answers)

What is the name of all flat shapes with three or more straight sides?

[ ]	Triangle
[ ]	Polyhedron
[x]	Polygon
[ ]	Heptagon

So triangles, squares, rectangles and pentagons are all polygons

How many sides does an octagon have?

[ ]	5
[ ]	6
[ ]	7
[x]	8

To help remember this, think of an octopus with 8 legs

What is a seven sided polygon called?

[x]	Heptagon
[ ]	Hexagon
[ ]	Pentagon
[ ]	Tetrahedron

A heptagon has 7 sides and a heptagram is a star with 7 points

Which of these is a regular polygon?

[ ]	Rectangle
[ ]	Right angled triangle
[x]	Square
[ ]	Circle

A regular polygon has all sides equal

What is the name of the triangle with all sides and all angles equal?

[ ]	Right angled triangle
[ ]	Isosceles triangle
[x]	Equilateral triangle
[ ]	Pyramid

An equilateral triangle has angles of 60^o at each of its corners

Which of these describes an isosceles triangle?

[ ]	Triangle with 3 equal sides
[x]	Triangle with 2 equal sides and 2 equal angles
[ ]	Triangle with 3 equal sides and 2 equal angles
[ ]	Triangle with 2 equal sides and 3 equal angles

An isosceles triangle has 2 equal angles which are opposite to 2 sides of equal length

What is a polyhedron?

[ ]	A 3D shape where all faces are square
[x]	A 3D shape where all faces are flat polygons
[ ]	A 2D shape where all angles are different
[ ]	A 2D shape with twelve sides

Cubes and cuboids are both polyhedrons

What is the name given to the distance from the center of a polygon or circle to one of the vertices?

[ ]	Circumference
[ ]	Diameter
[x]	Radius
[ ]	Tangent

The diameter is twice the radius

What is the name given to a shape that has four faces all of which are equilateral triangles?

[x]	Tetrahedron
[ ]	Polyhedron
[ ]	Prism
[ ]	Pyramid

Tetrahedrons are similar to pyramids, but pyramids have 5 faces, one of which is a square

10.

How many degrees in a right angle?

[ ]	60^o
[x]	90^o
[ ]	180^o
[ ]	360^o

There are 360^o in a full turn so a quarter turn will be 90^o