What is the length of the Radius if AB is tangent to OB

Gijs Brandsma asked Jan 3, 2023

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Gijs Brandsma asked Jan 3, 2023

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10 votes

Answer:

r = 5 units

Explanation:

One way is to use the Pythag Theroem

12 ^2 + r^2 = (8+r)^2

144 + r^2 = 64 + 16r + r^2

80 = 16 r r = 5

OniLink answered Jan 9, 2023

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