Angles A and B are adjacent, Angle A is 50 degrees greater than angle B. Calculate their degree measures.
April 2, 2021 | education
| 1. Let’s denote the angle B through x.
2. Determine the degree measure of the angle A:
(x + 50˚).
3. Since the angles A and B are adjacent, then we compose and solve the equation:
(x + 50˚) + x = 180˚;
x + 50˚ + x = 180˚;
2x + 50˚ = 180˚;
2x = 180˚ – 50˚;
2x = 130˚;
x = 130˚: 2;
x = 65˚.
4. The degree measure of the angle B is equal to x = 65˚.
5. What is the degree measure of angle A?
x + 50˚ = 65˚ + 50˚ = 115˚.
Answer: the degree measure of angle A is 115˚, the degree measure of angle B is 65˚.
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