Question

Please tell 20 or 40

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Answer 1

Answer:

40

Step-by-step explanation:

2x-20+3x=180 (Linear pair)

5x-20=180

5x=180+20

x=200/5

x=40

Answer 2

Answer:

x = 40°

Solution:

Clearly,

In the given figure , angles (2x - 20°) and 3x are linear pairs.

Also,

We know that ,

The sum of linear pair of angles is 180° .

=> 2x - 20° + 3x = 180°

=> 2x + 3x = 180° + 20°

=> 5x = 200°

=> x = 200°/5

=> x = 40°

Hence,

The required value of x is 40° .