What is the compass's circumference?
Use 3.14 for π.

What is the compass's area?
Use 3.14 for π

15.7 and 19.625

Step-by-step explanation:

multiply 5 and 3.14

answer for first part

multiply 3.14 and half of 5 which is 2.5 and square it.

answer for second is 19.625

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.

55-15= 40

55,000-10,000=45,000

45000/55=819

it is 819?

Step-by-step explanation: