two adjacent angles of a parallelogram are in the ratio 7:2.find the measure of all the angles of a parallelogram
Answers
Answered by
73
let the adjacent angles be x
then, the adjacent angles are 7x and 2x
ATQ,
7x + 2x = 180
9x = 180
x = 180/9
x = 20
1st adjacent angle = 7×20
= 140 degree
2nd adjacent angle = 2×20
= 40 degree
opposite angle to 1st adjacent angle = 140 degree
opposite angle to 2nd adjacent angle = 40 degree
therefore the angles are 140 degree, 40 degree, 140 degree, and 40 degree
then, the adjacent angles are 7x and 2x
ATQ,
7x + 2x = 180
9x = 180
x = 180/9
x = 20
1st adjacent angle = 7×20
= 140 degree
2nd adjacent angle = 2×20
= 40 degree
opposite angle to 1st adjacent angle = 140 degree
opposite angle to 2nd adjacent angle = 40 degree
therefore the angles are 140 degree, 40 degree, 140 degree, and 40 degree
jennifer39:
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Answered by
4
The angles are 140 ,40 140,40 hope it helps you please mark as brain list
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