Question

The measures of some angles are given below. Write the measures of their complementary angles.1)40° 2)63° 3)45° 4)55° 5)20° 6)90° 7)x°​

Answer 1

Step-by-step explanation:

Complementary angle = 90°

So

1) 90° - 40° = 50°

2) 90° - 63° = 17°

3) 90° - 45° = 45°

4) 90° - 55° = 35°

5) 90° - 20° = 70°

6) 90° - 90° = 0°

7) 90° - x° = 90° - x

HOPE YOU LIKE IT

Answer 2

The correct answers are: 1)50° 2)27° 3)45° 4)40° 5)70° 6)0° 7)(90-x)°.

Given:

The measures of some angles are given: 1)40° 2)63° 3)45° 4)55° 5)20° 6)90° 7)x°​.

To Find:

The measures of their complementary angles.

Solution:

To solve this question, we will use the concept of complementary angles.

Complementary angles are those whose measures add up to 90.

Hence, if x and y are a pair of complementary angles, then:

∠x + ∠y = 90°.

If one of the angles is given, we can find the other angle by subtracting the given value from 90.

1) The complementary angle of 40° = 90 – 40 = 50°.

2) The complementary angle of 63° = 90 – 63 = 27°.

3) The complementary angle of  45° = 90-45 = 45°.

4) The complementary angle of  55° = 90-50 = 40°.

5) The complementary angle of 20° = 90-20 = 70°.

6) The complementary angle of  90° = 90-90 = 0°.

7) The complementary angle of  x° = (90 – x)°.

∴ The correct answers are: 1)50° 2)27° 3)45° 4)40° 5)70° 6)0° 7)(90-x)°.

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