Question

Find the exact area of a circle having the given circumference three pie

Answer 1

I got 28.26

Answer 2

From my calculations not quite right. Let me show you =)

Answer 3

Alright

Answer 4

2πr

Answer 5

\[C= 2 \times \pi \times r\]\[3\pi = 2 \times r\]\[3\pi \div 2 = 2 \times r \div2\]\[r=1.5\] So the radius is 1.5 units. Now, \[A=\pi \times r ^{2}\] Now I want you to plug in the 1.5 into the A=pi x r^2

Answer 6

So do 2 times 1.5?

Answer 7

remember the square. \[1.5^{2}\]

Answer 8

3.14 times 1.5

Answer 9

9.42?

Answer 10

\[A=3.14 \times 1.5^{2}\] next\[A=3.14 \times 2.25\]

Answer 11

7.065

Answer 12

You got it!

Answer 13

Thank you!

Answer 14

No problem! That's what I am here for=) Any more?