Basic Geometry Exercises

Example 1

Find the area of a circle with a diameter of 3 inches.

Hint

the radius is half the diameter

Example 2

Find the area of:

pentagon 5.1 side length

Hint

the perimeter will be five times the length of a side

Example 3

Find the area of:

trapezoid with height 3.6cm

Hint

the bases make 90° angles with the height

Example 4

This isosceles right triangle:

Isosceles Right Triangle (#4)

Hint

the base makes a 90° angle with the height