Question

A and b are complementary angles. a measures 55°. what is the measure of b

Answer 1

Complementary angles means sum of angles are 90°

• To find

Complementary angle of 55°

• Let, complementary angle be x

55 + x = 90

x = 90 - 55

x = 35

Complementary angle of 55° is 35°

Answer 2

The measure of B = 35°

Given :

• A and B are complementary angles.

• A measures 55°.

To find :

The measure of B

Solution :

Step 1 of 2 :

Write down the given angle

Here it is given that A measures 55°.

A = 55°

Step 2 of 2 :

Find the measure of B

Two angles are said to be complementary if sum of the angles is 90°

Since

A + B = 90°

⇒ 55° + B = 90°

⇒ B = 90° - 55°

⇒ B = 35°

The measure of B = 35°

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