Question

Find the value of x in each of the following diagram : ​

Answer 1

Answer:

50°

Step-by-step explanation:

Diagram is on the straight line so it is 180° total.

And the half part is equal to 90°

So we will do, x+40° = 90°

x=90°-40°

x=50°

So,the value of x is 50°.

Answer 2

Step-by-step explanation:

you can solve it as the sum of the angles on a straight line are 180

add all the angles

3x + x + 40 = 180

4x + 40 = 180

4x = 180 - 40

4x = 140

x = 140/4

so x = 35

x = 35and 3x = 3 × 35 = 105

let us verify the answer that we got

that is when u add all the angles together

3x + x + 40

=105 + 35 + 40

=180.

Therefore LHS = RHS