Question

In ∆ABC, A = 3 B and C = B + 45°. Find the measure of A.​

Answer 1

Answer:

A=3B

C=B+45°

A+B+C=180°

3B+B+B+45°=180°

5B=180°-45°

5B=135°

B=135°÷5

B=27°

A=3B

A=3(27°)

A=81°

Step-by-step explanation:

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