Mathematics

# In the adjoining figure, what value of $x$ will make $AOB$ a straight line?

$x$ = $35$

##### SOLUTION
(b) $x$ = $35$
Because,
It is given that the angles of the side be $(2x-10)^{o}$ and $(3x+15)^{o}$.
= $(2x-10) + (3x+15)$ = $180$...$[\because Linear\,pair]$
= $2x-10+3x + 15$ = $180$
= $5x + 5$ = $180$
= $5x$ = $180-5$
= $x$ = $175/5$
=$x$ = $35$

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Single Correct Medium Published on 09th 09, 2020
Questions 120418
Subjects 10
Chapters 88
Enrolled Students 87

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