the angles of a triangle are in the ratio 1:4:7 then the value of largest angle is
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The sum of angles of triangle is 180
let the angles 1x,4x,7x
1x+4x+7x=180
12x=180
x=180/12
= 15
first angle = 1*15=15°
second angle=2*15=30°
third angle=3*15=45°
value of largest angle is 45°
let the angles 1x,4x,7x
1x+4x+7x=180
12x=180
x=180/12
= 15
first angle = 1*15=15°
second angle=2*15=30°
third angle=3*15=45°
value of largest angle is 45°
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