Question

I need help with Inscribed Angles...

Answer 1

yes ?

Answer 2

Hi, I'll show you the equation.

Answer 3

okie...

Answer 4

Line AB is tangent to O. If AO = 12 and BC = 25, what is AB? The diagram is not to scale.

Answer 5

hint : OC = OA

Answer 6

Is that because they both are radii?

Answer 7

yes

Answer 8

Hmm, okay.

Answer 9

good, you can do the rest.. :)

Answer 10

Would Line AB equal 37?

Answer 11

Because if BC=25 and CO=12 25+12=37.

Answer 12

OB = 37
OA = 12

use pythagora

Answer 13

AB^2 + OA^2 = OB^2
AB^2 + 12^2 = 37^2

solve AB

Answer 14

also worth noting-
lines tangent to circles create a 90 degree angle to the radius of the circle

which is why you are able to use pythagorean theorem

Answer 15

I got AB^2+144=1369
What's the next step?

Answer 16

subtract 144 both sides

Answer 17

I got 1225 then I square rooted it, and got 35

Answer 18

thats right ! good work :)

Answer 19

Haha, awesome. Thank you so much! School's almost out and Im having a hard time with these!

Answer 20

np :)