Question

Q

Answer 1

The circle has an implied triangle in it which can help you find the radius:

Answer 2

Ohhh! I can solve now. Thankz

Answer 3

Make sure you remember to take the square root at the end.

Answer 4

I know pathagorean theorm. :P

Answer 5

CAn u help one more?

Answer 6

@Numb3r1

Answer 7

I'm here. Give me a moment.

Answer 8

kk

Answer 9

(ignore the bit sticking out)

Answer 10

See the right triangles? Use them to solve.

Answer 11

@Numb3r1

Answer 12

84?

Answer 13

@phi is this right?

Answer 14

yes

Answer 15

Thank you. :D

Answer 16

the two tangents from a single point are equal. you know the length of one side of each pair.
so add them up and multiply by 2. as they are 3 consecutive integers, you can just multiply the middle number by 3 to get the sum, then double, or 2*3*14= 6*14= 84