michaelwashington01 michaelwashington01
  • 14-05-2018
  • Mathematics
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What is the measure of

What is the measure of class=

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ktreyb
ktreyb ktreyb
  • 14-05-2018
The triangle is isosceles so m∠A and m∠C are the same. 

So to find ∠B, we do 74 + 74 + b = 180

148 + b = 180
b = 180 - 148
b = 32

Answer B is the right choice. 
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