bren27
30.12.2020 •
Mathematics
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Ответ:
9514 1404 393
x = 12
Step-by-step explanation:
The square of the length of the tangent segment is equal to the product of lengths from the external common point to the two circle intersections of the secant.
x^2 = (2)(70+2)
x^2 = 144
x = √144
x = 12
Ответ:
6×2=12
42-12=30
b. 15 inches