2 years ago

What is the measure of m_A?

Mathematics

1 answer:

Leto [7]2 years ago

8 0

Answer:

m∠A=52°

Step-by-step explanation:

Because of the exterior angle theorem, m∠A+m∠B=105° (The exterior angle)

We then end up with an equation like this...

m∠A+m∠B=105°

Then, you do the substitution...

x+53°=105°

Subtract 53 from both sides...

x=105°-53°

x=52°

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