Geometry Review

Front

What is a polygon?

Back

A polygon is a closed figure made up of straight line segments. The segments are called sides, and the points where the sides meet are called vertices.

Front

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

Back

The sum of the interior angles of a pentagon is 540 degrees.

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is a trapezoid?

Back

A trapezoid is a quadrilateral that has at least one pair of parallel sides.

Front

What is the formula for the area of a rectangle?

Back

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

Front

What is symmetry?

Back

Symmetry is when one shape becomes exactly like another if you flip, slide, or turn it.

Front

What is a line of symmetry?

Back

A line of symmetry is a line that divides a shape into two identical parts that are mirror images of each other.

Front

How do you find the measure of an unknown angle in a triangle?

Back

To find the measure of an unknown angle in a triangle, subtract the sum of the known angles from 180 degrees.