Question

help please

Answer 1

so here is what we have:

Answer 2

what we want to do is make a triangle out of that and use the Pythagorean theorem (\[A^{2} +B^{2} = C^{2}\])

Answer 3

ok, writing as you type :)

Answer 4

so A(5+10) B(4+3) is \[15^{2}+8^{2}= 225+64= \sqrt{289} = 17\]

Answer 5

that gives the diameter which is 2r so the radius is 8.5

Answer 6

wait it's 7 not 8 lol

Answer 7

7.5 or just 7?

Answer 8

so that changes it to 225+49 =274

Answer 9

the square root of that is 16.55 divided by 2 is 8.276

Answer 10

so 8.3?

Answer 11

do you see where the numbers come from?

Answer 12

yes i was just checking. trying to write fast lol

Answer 13

it would have been neater if i didn't use 8 on the clean example lol

Answer 14

lol yes lots of scratch now haha. so just to be sure its 8.3?

Answer 15

yes that is what it rounds to