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Help now please will give brain list

Help now please will give brain list-example-1
User Legion
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1 Answer

4 votes

Answer:

? = 7.5

Explanation:

the angle between the tangent and the radius at the point of contact is 90°

thus the triangle is right

using Pythagoras' identity in the right triangle

?² = 4.5² + 6² = 20.25 + 36 = 56.25 ( take square root of both sides )

? =
√(56.25 ) = 7.5

User Hodrobond
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