Question

the angle of a triangle in ratio 2:4:3.Find its largest angle.​

Answer 1

Answer:

80°

Step-by-step explanation:

Let x be the positive common ratio.

Therefore, the sides are 2x°, 3x°, 4x°

BTP

2x+3x+4x=180

or, 9x=180

or, x=20

Largest angle= 4(20°)=80°

Answer 2

Answer:

80°

Step-by-step explanation:

Let the angles be 2a,4a and 3a.

According to angle sum property,

<A+ <B + <C = 180°

2a+ 4a + 3a = 180°

9a= 180

a= 20

=> 2a = 40° , 4a = 80° and 3a = 60°

Therefore,the largest angle is 4a i.e, 80°