Question

What is the approximate perimeter of the figure?



A.
7.85 in.

B.
12.9 in.

C.
17.9 in.

D.
31.4 in.
https://static.k12.com/calms_media/media/1419000_1419500/1419362/1/2dd75d8790e7655ed5b082ea53a6a36f5dfb94b4/MS_PA_130922_171143.jpg

Answer 1

@openstudier013087

Answer 2

Any ideas?

Answer 3

B or c? maybe

Answer 4

Hint: C=2pi*r

Answer 5

Do you know the formula for the circumference of a circle

Answer 6

@openstudier013087 radius*pi

Answer 7

Circumference means the distance around the entire circle = 2*pi*r

Answer 8

2*pi*r

Answer 9

but since this is only one fourth of a circle divide the whole formula by four

Answer 10

$$\Huge C=2\pi r$$

Answer 11

So you get 10*pi divided by 4

Answer 12

Which you get about 7.854

Answer 13

I got a is that correct

Answer 14

No

Answer 15

Remember that after doing the formula you still need to add 10

Answer 16

Because the formula only helps you find the semi circle part

Answer 17

so c

Answer 18

So the answer is c yes