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I'm stuck on these threee problems.

 

 Mar 20, 2021
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14)

 

arc length =  2pi * radius * (210 / 360)  =  2 pi * 9 * (7/12)  =  10.5 pi ft  ≈  33 ft

 

 

16 )   a)   b)     PNQ  and PQO   are inscribed angles  subtending arc PQ.....their measures are half of this arc = 40°

 

18 )   We  have a right triangle with a hypotenuse of 12.5   one leg = 7.5  and the  other leg  = 2x

 

So

 

2?  =sqrt ( 12.5^2  - 7.5^2)  =  sqrt (100)  = 10 

 

2?  = 10

 

?  = 10 / 2  =  5

 

 

 

cool cool cool

 Mar 20, 2021

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