Question

You are standing at point B. Point B is 16 feet from the center of the circular water storage tank and 15 feet from point A. is tangent to circle O at A. Find the radius of the tank. Refer to attachment for diagram

Answer 1

it's 5.6 ft.
just use pythagorean theorem.
\[16^{2} - 15^{2} = 31 \]
therefor the answer is 5.6 ft

Answer 2

pythagrean theorm --> a^2 + b^2 = c^2
c is your hypotenuse
a is what you're finding
a^2 + 15^2 = 16^2
a^2 = 16^2 - 15^2
a = Square Root( 16^2 - 15 ^2)

Answer 3

5.6 isnt an answer choice

Answer 4

never mind

Answer 5

it's d) from the attachment you sent

Answer 6

I see