Question

A triangle has interior angles 2x,3x and 4x. Find largest exterior angle.Show your working

Answer 1

Answer:

The angles of a triangle are 2x, 3x and 4x degrees. How do you find the value of x?

When we add, 3 angles than it is supplementary.

Sum of the measure of angles are supplementary, this is the property used in the sum.

So,2x+3x+4x=180.

9x=180.

X=180/9.

X=20.

So,the answer of the question is, the value of x =20 degree.

Answer 2

Step-by-step explanation:

let the angle be 2x 3x and 4x

a/q

sum of all angles of a triangle is 180

2x+3x+4x = 180

9x = 180

x=20

1st angle is 40

2and angle 60

3rd angle 80

largest angle 80

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