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erma4kov [3.2K]
3 years ago
5

∠A and ∠B are complementary angles. If the measure of ∠A is 42°, find the measure of ∠B.

Mathematics
2 answers:
Katarina [22]3 years ago
7 0

Answer:

<h2>∠B = 48°</h2>

Step-by-step explanation:

Since ∠A and ∠B are complementary angles their angles sum up to 90°.

In order to find ∠B add both ∠A and ∠B and equate them to 90° and solve for ∠B

That's

∠A + ∠B = 90

42 + ∠B = 90

∠B = 90 - 42

We have the final answer as

<h3>∠B = 48°</h3>

Hope this helps you

Leno4ka [110]3 years ago
4 0

Answer:

∠B = 48°

Step-by-step explanation:

A Complementary angles are total of 90°

If the measure of ∠A is 42°, find the measure of ∠B:

∠A + ∠B = 90°

42° + ∠B = 90°

∠B = 90° - 42°

∠B = 48°

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