Question

If a circle has a circumference of 43.96 units, what is the approximate area of the circle? (Use 3.14 as an

approximation of pi.)

Answer 1

Answer:154 rounded to whole number

Explanation:

C=pi ×d

43.96 = 3.14 ×d

d= 43.96÷3.14

d= 14

So radius is 7 (half of diameter)

Area=3.14×7×7

=153.86

Answer 2

If we were to use 3.14 as pi . . .

43.96/3.14 = 14

14/2 = 7

7 x 7 = 49

49 x 3.14 = 153.86

153.86 would be the correct answer

But if we were to use pi. . .

615.1279985 would be the answer.