Question

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

Answer 1

Answer:

Step-by-step explanation:

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

Mark as Brainliest

Answer 2

answer:

Step-by-step explanation:

2(4x-15)+2(5x-3) = 360 (because sum of all the angles in a parallelogram is 360.)

Solving this, we get x= 22.

Plug in this value in the two angles provided in the question. The four angles of the parallelogram are 107, 107, 73 and 73.