Question

The angle of a triangle are in the ratio 3:5:7: .The triangle is...

Answer 1

Let the required angles be 3x ,5x and 7x
Total sum of the angles of a triangle 180 degree
A T Q
3x +5x +7x =180
15x =180
x =12
3x = 36 degree
5x =60 degree
7x= 84 degree

Answer 2

Let Angle A=3x Angle B=5x and Angle C=7x.

Sum of all angles of a triangle is 180 digrees.

3x+5x+7x=180

15x=180

x=180/18 ,x=12

Therefore,Angle A=3*12=36,B=5*12=60 and C=7*12=84

Hence it is a scalene triangle!!