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Shalnov [3]
2 years ago
6

What must the radius of C be for PR to be tangent to it at Q?

Mathematics
1 answer:
Setler79 [48]2 years ago
5 0

Answer:

D. 8

Step-by-step explanation:

Draw segment CQ which will be perpendicular to tangent PR.

So, triangle CQR will be right angled triangle right angle at Q.

Let radius of the circle be r.

Therefore,

CQ = CS = r

By Pythagoras Theorem:

{(r + 9)}^{2}  =  {r}^{2}  +  {15}^{2}  \\  \\  {r}^{2}  + 18r + 81 =  {r}^{2}  + 225 \\  \\ 18r = 225 - 81 \\  \\ 18r = 144 \\  \\ r =  \frac{144}{18}  \\  \\ r = 8

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This year, the Newville Tigers won six games more than the Wilton Panthers won. The Tigers won 22 games. Which equation cannot b
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I hope this helps you



Volume of cone =1/3.pi.r^2.h


Volume of cone =1/3.3,14.60^2.150


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3 years ago
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