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24 votes
Can someone explain me the answer and how to solve it

Can someone explain me the answer and how to solve it-example-1
User Gertjan
by
6.6k points

1 Answer

5 votes

Answer:

The radius is 8.

Explanation:

Because OA is a radius and AB is a tangent, Angle A is a right angle. So you can use Pythagorean theorem (shortcut Pythagorean triple)

OA^2 + 15^2 = 17^2

OA^2 + 225 = 289

OA^2 = 64

OA = 8

OA is a radius, the radius = 8

User Bob Ensink
by
6.0k points
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