Math, asked by verma1511monika59, 4 hours ago

please answer this question fast and correctly
class 9​

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Answered by palchau2017
21

Answer:

50

Step-by-step explanation:

(x+10) + x + (x+20) =180 (since they are ina straight line)

3x+30 =180

3x=150

x=50

Answered by TheMoonlìghtPhoenix
13

Step-by-step explanation:

In this question, what we need to apply is the concept of straight angles in a straight line.

We know that wherever we're given a straight line, divided into infinite segments, they always sum up to give us 180°.

In this question also, we're gonna apply the same thing so there!

\rm{x + 10 + x + x + 20 = 180}

Simplifying the terms given,

\rm{3x + 30 = 180}

\rm{3x = 180 - 30}

\rm{3x  = 150}

\rm{x  = \dfrac{150}{3}}

\rm{x  = 50}

So, we found x as 50°. Hence the required answer to the question.

  • Note :- We need to apply the concept of angles in a straight line or linear pair.
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