canaanls
canaanls canaanls
  • 25-04-2020
  • Mathematics
contestada

In the circle below tangent PA and secant PBC have been drawn.if PB=4 and BC=12 then which of the following is the length of tangent PA?

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DeanR
DeanR DeanR
  • 25-04-2020

I drew my own picture but my answer got deleted in the meantime because I used a figure from another website.

We have PC = PB + BC = 4 + 12 = 16

PA² = PB·PC = 4(16) = 64

PA = 8

Answer: 8

Ver imagen DeanR
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