Unit 4 2D and 3D shapes Review

Front

What is a polygon?

Back

A polygon is a closed figure formed by a finite number of straight line segments connected end to end.

Front

How many sides does a hexagon have?

Back

A hexagon has 6 sides.

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is 180 degrees.

Front

What is the difference between 2D and 3D shapes?

Back

2D shapes have only length and width, while 3D shapes have length, width, and height.

Front

How many edges does a rectangular prism have?

Back

A rectangular prism has 12 edges.

Front

What is an octagon?

Back

An octagon is a polygon with 8 sides.

Front

What is a vertex in geometry?

Back

A vertex is a point where two or more line segments meet, forming an angle.

Front

What shape is formed when an octagon is cut along its diagonals?

Back

Cutting an octagon along its diagonals can create several triangles and quadrilaterals, including rectangles.

Front

Which polygon has fewer sides than a hexagon?

Back

A pentagon has fewer sides than a hexagon, as it has 5 sides.

Front

What is the formula for calculating the area of a rectangle?

Back

The area of a rectangle is calculated by multiplying its length by its width (Area = length × width).