3 years ago

AB is tangent to circle at B. Find x.

Mathematics

1 answer:

Tanya [424]3 years ago

5 0

Answer:

x = 6

Step-by-step explanation:

using the Pythagorean theorem:

(4 + x)² = 8² + x²

16 + 8x + x² = 64 + x²

subtract x² and 16 from each side of the equation:

8x = 48

divide both sides by 8:

x = 6

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