Question

If AC=12 and BC=9, what is the
radius?http://www.intervisualtechnology.us/data/1/9050/apply_12_1.png

Answer 1

1. AC = 12
AB =x
BC = 9
81+x^2 = 12^2
81+x^2 = 144 +9x +18
-18 -18
63+x^2=144+9x
-63 -63
x^2 = 81+9x

Answer 2

I don't get how to do the rest.@jhonyy9

Answer 3

so look it please there you not need using x because is given AC = 12 and BC = 9
just use pythagora"s and get the length of radius

right ?

Answer 4

yes

Answer 5

so this is more easy than before - yes ?

Answer 6

yeah

Answer 7

so radius = ?

Answer 8

r = sqrt(12^2 -9^2)

r = ?

Answer 9

144-81=63

Answer 10

sqrt63=7.9

Answer 11

yes but r=sqrt63 = ?

Answer 12

no

sqrt63 = sqrt(9*7) = sqrt9 *sqrt7 = ?

Answer 13

sqrt9 = sqrt(3^2) = ?

Answer 14

sqrt(3^2) = (3^2)^(1/2) = 3^(2*(1/2)) = ?

Answer 15

3

Answer 16

yes but there is again sqrt7 so how many will be ?

Answer 17

sqrt63 = sqrt9*sqrt7 = ?

Answer 18

so you know that sqrt9 = 3 than sqrt63 = sqrt9*sqrt7 = ?*sqrt7

Answer 19

sqrt7*4.9

Answer 20

@jhonyy9

Answer 21

HI i know you, your cool god loves you god bless you, you thy be blessed ʕ•ᴥ•ʔ