Question

one angles is equal to three times its supplement . The measure of the angles is ? cbse 9 class subject maths chapter 6 one mark question answer option type

1 = 130 degree

2 = 135 degree

3 = 90 degree

4 = 120 degree

plz right option send me just​

Answer 1

Answer:

(2) 135°

Step-by-step explanation:

Given:

x=3y

As it's supplementary angle,

so, x+y=180°

=> 3y+y=180°

=> 4y=180°

=> y=45°

Putting the value of y in the given equation,

=> x+45°=180°

=> x=135°

Mark it as the brainliest answer ☺️.

Answer 2

Answer:

2

Step-by-step explanation:

2 =135 is the correct answer

Let angle =x

it's supplement=180-x

x=3(180-x)

x= 540-3x

x+3x=540

4x= 540

x=540/4

x=135

angle is 135 degree