Two adjacent angle of parallelogram are (4x - 15) and (5x - 3)'.Find the measure of all angles of the parallelogram.
Answers
Answered by
30
Answer:
★Angles : 73° , 107° , 73° , 107
Given
- Two adjacent angle of parallelogram are (4x- 15) and (5x - 3).
To find
- Find the measure of all angles of the parallelogram.
Solution
★We know that
- The sum of adjacent angles of parallelogram is 180
★so
- 4x-15+5x-3 = 180
- 9x -18 = 180
- 9(x-2) = 180
- x-2 = 20
- x = 22
★As opposite angles of parallelogram are equal
so all angles are
- 4x-15 = 4(22) - 15
- = 73
★&
- 5x-3 = 5(22)-3
- = 107
★so all angles are
- 73° , 107° , 73° , 107°
Answered by
61
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
Put this value in the two angles provided in the question. The four angles of the parallelogram are 107 , 73 and 73
Hope it helps you
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