Question

If three angle of a triangle are x,3x and112 degree then find the value of x​

Answer 1

Answer:

x+3x+112°=180°

4x=180°-112°

x=68°/4

x=17°

Answer 2

The value of x is 17

Explanation:

Given:

Three angles of a triangle

∠A=x

∠B=3x

∠C= 112°

To find:

The value of x

FORMULA:

Sum of the triangle = 180°

==> ∠A+∠B+ ∠C = 180°

==> Substitute the given values in the formula

==> x+3x+112° =180°

==> 4x+112° =180°

==> 4x = 180°-112°

==> 4x = 68°

==> x =  68°÷4

==> x = 17

The value of x is 17

Substitute the x value and check the answer is correct

∠A=17°

∠B=3(17)= 51°

∠C= 112°

To check whether the x value is correct or  not :

==> 17°+51°+ 112°= 180°

==> 68° + 112° =180°

==> 180° = 180°

Hence proved