Four angles of the quadrilateral are in the ratio of 3:5:7:9. Find the greatest angle
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135 degree angle is greater angel
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Answer:
let the common ratio be x
angles = 3x, 5x, 7x and 9x
sum of angles of a quadrilateral is 360
3x+5x+7x+9x=360
24x=360
x=360÷24
=15
angles= 3x=3×15=45
= 5x =5×15= 75
=7x= 7×15 = 115
9x= 9× 15= 135
largest angle= 135 degrees
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