Question

In fig 10.38 Aoc is a line find x ​

Answer 1

Answer:

x=55

Step-by-step explanation:

70+2x=180( sum of angles on a straight line is 180

2x=110

x=55

Answer 2

$\angle {AOC } = 180\degree :\blue {( Straight \:angle )}$

$\angle {AOB} + \angle {BOC} = 180\degree$

$\pink {( Linear \:pair ) }$

$\implies 70\degree + 2x = 180\degree$

$\implies 2x = 180\degree -70\degree$

$\implies 2x = 110\degree$

$\implies x = \frac{110\degree}{2}$

$\implies x =55\degree$

Therefore.,

$\red { Value \:of \:x } \green {=55\degree}$

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