102k views
0 votes
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

A circle has a diameter of 28 centimeters. Estimate the area of the circle. Use 22/7 for π.
Please answer this as soon as possible!

User Etal
by
9.1k points

2 Answers

5 votes

Answer:

616 cm²

Explanation:

To find the area of a circle you use the formula A = π · r²

So we know that the diameter is 28 cm, to find the radius we would divide this in half, because d = 2r, giving us 14. Now we can do 14² which is 196, and then times that by pi or in this case 22/7.

196 × (22/7) = 616

User Ruffin
by
8.2k points
7 votes

Answer:

616 square centimeters

Explanation:

Diameter of circle = 28 centimeters

π = 22/7

Area of a circle, A = π
(D^(2) )/(4)

A =
(22)/(7) *
(28^(2) )/(4)

A =
(22)/(7^(1) ) *
((4 * 7)^(2) )/(4)

A =
(22)/(7^(1) ) *
(4^(2) *7^(2) )/(4)

A = 22 * 28

A = 616 square centimeters

User Cypher
by
8.4k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories