C = 15.7
A = 19.6
Step-by-step explanation:
The compass has a diameter of 5 centimetres.
Formula for a circumference of a circle: OR
We will use the second formula since we are given the diameter.
5 * 3.14 ≈ 15.7
The the circumference is about 15.7 inches.
Formula for area of a circle:
The radius of the compass is 2.5.
5 ÷ 2 = 2.5
19.6349540849 ≈ 19.6
The area is about 19.6 square inches.