Question

If two supplementary angles are (5a + 42)° and (2a +82)°, Find the value of a. ​

Answer 1

Answer:

The Correct Answer is 8

Step-by-step explanation:

Two angles that sum up to 180 degrees are referred to as supplementary angles. A linear pair's two angles, such as 1 and 2 in the diagram below, are always supplementary. However, two angles do not have to be contiguous to be complementary. 3 and 4 in the next diagram are supplementary since their measurements add up to 180°.

(5a + 42) + (2a + 82) = 180

7a + 124 = 180

7a = 180 - 124

7a = 56

a = 8

Answer 2

Answer:

5a + 42 + 2a + 82 = 180

7a + 124 = 180

7a = 56

a = 56/7

a = 8

Step-by-step explanation:

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