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the angle of quadrilateral are in …

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the angle of quadrilateral are in the ratio of 7:8:9:12.

Posted by Diksha Laniya🐥 5 years ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 5 years ago

Let the ratio be x :-
Sum of angles of a quadrilateral = 360°
=> 7x + 8x + 9x + 12x = 360
=> 15x + 21x = 360
=> 36x = 360
=> x = 360 ÷ 36
=> x = 10
Angles are :-
7x × 10 = 70
8x × 10 = 80
9x × 10 = 90
12x × 10 = 120

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CBSE > Class 08 > Mathematics