Find x in the given figures. Thanks in advance! xD
2 answers:
Answer:
x = 4 in
Step-by-step explanation:
Given a tangent and a secant to the circle from an external point, then
The square of the tangent is equal to the product of the secant's external part and the entire secant, that is
x² = 4(4 + 8) = 4 × 12 = 48 ( take the square root of both sides )
x = =
=
×
= 4
← exact value
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Answer:
Step-by-step explanation:
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is the center of the circle and
is the radius of the circle.
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, their distance between each other must the radius of the circle, so we can use the distance formula to find the radius:
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