3 years ago

AB is Tangent to circle O at B. if AB = 7 and AO = 17.4, what is the length of radius r to the nearest tenth?

Mathematics

2 answers:

Vladimir79 [104]3 years ago

6 0

The answer to the question is 15.92

irakobra [83]3 years ago

5 0

The angle the radius makes with AB is a right angle, so the Pythagorean theorem applies.
r² = 17.4² - 7² = 253.76
r = √253.76 ≈ 15.9

The length of radius r is about 15.9.

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