Question

Two angles are supplementary. One angle measures 2x, and the other angle measures 3x - 15. Which equation can you use to find the measure of each angle? 2 x - 3 x - 15 = 180° 2 x 3 x - 15 = 90° 2 x 3 x - 15 = 180° 2 x - 3 x - 15 = 90°.

Answer 1

Statement:

Two angles are supplementary. One angle measures 2x, and the other angle measures 3x - 15.

To find out:

The equation to find the measure of each angle.

Solution:

• Supplementary angles are angles which sum up to 180°.
• While, complementary angles are angles which sum up to 90°.
• Here, the sum of the two angles, i.e., 2x and 3x - 15, should be 180°.
• So, the equation will be: 2x + 3x - 15 = 180°.

Answer:

2x + 3x - 15 = 180°

Hope you could understand.

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