Question

If x° and x+40 are supplementary angles then find x°​

Answer 1

Answer:

$\sf \huge \green {\therefore \: x \degree = 70 \degree}$

Step-by-step explanation:

x° + ( x + 40 )° = 180°

2x + 40 = 180

2x = 180 - 40 = 140

$\sf x = \frac{140}{2} = 70 \degree$

Answer 2

Given:

x° and (x+40) ° are supplementary angles.

To find:

The value of x°.

Solution:

The value of x is 70°.

To answer this question, we will follow the following steps:

As we know that if two angles 'a' and 'b' are supplementary to each other, then their sum is equal to 180°.

This means,

a + b = 180°

Now,

as given in the question,

We have two angles- x° and (x+40)° that are supplementary angles.

So,

we have,

$x + x + 40 = 180°$

$2x + 40 = 180°$

$2x = 140$

$x = 70°$

Hence, the measure of angle x is 70°.