Question

11. The three angles of a triangle are in the ratio 1 : 2 : 1. Find all the angles of the triangle. Also classify the triangle​

Answer 1

Answer:

sum of all angles of triangle=180

No of angle=3

let the angle of triangle=X

3 angle=3x=180

X=60

angle a=60,b=60,c=60

Answer 2

Step-by-step explanation:

let one angle be =1x(x)

let second angle be = 2x(y)

let third angle be =1x (z)

now,if we add x+y+z we get 180° ( angle sum property )

so , > 1x + 2x + 1x = 180°

> 4x=180

> x= 180/4

> x= 45°

therefore,

1st angle = 1x= 45°×1=45°

2nd angle= 2x= 45°× 2=90°

3rd angle= 3x= 45°×1=45°

therefore , it is a isosceles triangle because two angles are same in this triangle