Question

Two adjacent angles of a parallelogram are (4x-15)° and (5x-3)°. find the measure of all angles of a parallelogram.

Answer 1

Answer:

The sum of two adjacent angles will be equal to 180 degree.

4x - 15 + 5x - 3 = 180 degree

4x + 5x -15 -3 = 180 degree

9x - 18 = 180 degree

9x = 180 degree - 18

9x = 162

x = 162/9

x = 18

4x - 15 = 4 * 18 = 72

5x - 3 = 5 * 18 = 90

Step-by-step explanation:

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