Question

If the angles A B and C of a triangle ABC are in the ratio 1:2:3 find them . What sort of a triangle is this?

Answer 1

Answer:

right angled triangle

because 1x+2x+3x = 180

x = 30

3x = 90

Answer 2

Answer:

Let, the sides of the triangle be 1x, 2x and 3x.

we know that,

Total angle of a triangle=180.

so, 1x+2x+3x =180.

6x =180.

x=180/6

x=30°

1st side= 1x=1× 30= 30°

2nd side = 2x = 2×30 = 60°

3rd side = 3x = 3× 30 = 90° .

Since one angle is 90° ,

It must be right angled triangle.

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