Question

angle of a triangle are in ratio 2:3:5 what is the largest angle

Answer 1

Let the ratio be x.
2x+ 3x+ 5x= 180 ( the Sum of the sides of a triangle are 180degree)
=> 10x= 180
=> x= 180/10
=> x=18
Frst angle= 2*18= 36
Second angle= 3*18= 54
Third angle= 5*18= 90
The largest angle is the third angle.

Hope it helps!

Answer 2

Answer:

let each angle be 2x,3x,5x

we know,

angle of a triangle is 180°

so, 2x+3x+5x=180°

=>10x=180°

=>x=180÷10=18°

=>x=18°

on substituting the value of x in each angle of triangle,

2x=2×18=36°

3x=3×18=54°

5x=5×18=90°

so the largest angle of this triangle is 5

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