Basic Geometry Exercises

How many degrees are there in a decagon?

Hint

subtract 2 from the number of sides

What is the measure of each angle in a regular hexagon?

Hint

divide the total degrees by the number of angles

Find the missing angle in the triangle.

Missing Angle Triangle (#3)

Hint

the total number of degrees in a triangle is 180

Find the missing angle in the triangle.

MIssing Angle Triangle (#4)

Hint

a right angle is 90°

Find the missing angle.

Missing Angle Triangle (#5)

Hint

this is a pentagon