Question

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Answer 1

Answer:

We have, Sum of adjacent angles is 180°

As the given 2 angles are adjacent to each other.

By adding them and equating them to 180 we'll get the value of x.

3x-10+2x-20=180

5x-30=180

5x=180+30=210

5x=210

x=210/5

x=42

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Answer 2

Step-by-step explanation:

Given -

Figure

To Find -

Value of x

As we know that :-

• The sum of the measures of adjacent angles that form a straight line is equal to 180°

Now,

» 3x - 10° + 2x - 20° = 180°

» 5x = 180° + 30°

» 5x = 210°

» x = 210/5

• » x = 42°

Hence,

The value of x is 42°

Then,

The angles are -

3x - 10° =

» 3(42°) - 10°

» 126° - 10°

• » 116°

And

2x - 20° =

» 2(42°) - 20°

» 84° - 20°

• » 64°

Hence,

The angles are 116° and 64°