Question

What is the approximate circumference of a semicircle with a radius of 12 centimeters?

A.
18.8 centimeters

B.
37.7 centimeters

C.
75.4 centimeters

D.
150.7 centimeters

Answer 1

do you know whats the formula for circumference of a semicirle

Answer 2

and what is pi given as

Answer 3

yea, give me a second

Answer 4

C=2*pi*r
Semicircle C= Pi*r

Answer 5

u googled it didn't you

Answer 6

anyways whats the value of pi

Answer 7

maybe. ^.^ 3.14?????

Answer 8

Semicircle C= Pi*r: good reasoning! 3.14 is good enough as an approximation to Pi.
What remains to be done?

Answer 9

multiplication???????

Answer 10

no its 22/7 x 12
so the answer is B

Answer 11

thank u for being patient with my dumbness! ;)

Answer 12

anymore questions?

Answer 13

@briananicolenelson

Answer 14

? confusssion!

Answer 15

what confussion

Answer 16

@mathmale kindly do not interfere

Answer 17

@ChiefArnaz: briananicolenelson was correct in stating that the next step would be multiplication. Perhaps you did not mean to, but what you typed appears to shoot down that idea of hers. Also, 3.14 is every bit a valid approximation to Pi as is 22/7.

Answer 18

....

Answer 19

Briana: You were correct here: Semicircle C= Pi*r. You are told that the radius is 12 cm. You may use either 22/7 or 3.14 as an approximation to Pi: your choice.

Mind calculating the circumference of the semicircle?

Answer 20

...

Answer 21

so lets not argue about this...... and assume everyone's right kk?

Answer 22

lol

Answer 23

its your choice who u choice to know the answer

Answer 24

anymore questions

Answer 25

well, i dont, i am stumped...... so everyone is right yay!