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Triangle ABC is isosceles with angle B congruent to angle C. The measure of angle C is five times the measure of angle A. What is the number of degrees in the measure of angle B?

 
 Jun 3, 2021
 #1
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A  +  B  +  C  =   180

 

Let  A  =  x

 

B  =  C    =   5x

 

So

 

x + 5x  +  5x   =  180

 

11x =  180

 

x  =  180 / 11

 

B = 5 (180 / 11)  ≈  81.81°

 

 

cool cool cool

 
 Jun 3, 2021

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