Question

In fig.4.100, AOB is a straight line
<AOC=(3x-8)°, <COD=50° and <BOD=(x+10)°
Then the value of x is
a) 32°
b) 42°
c)36°
d)52°​

Answer 1

Answer:

the correct answer is d) 52.

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Answer 2

Answer:

<AOC=(3x-8)°, <COD=50° and <BOD=(x+10)°

now, we know that,

<AOC+ <COD+<BOD=180°

Or, (3x-8)°+50° +(x+10)°=180°

or, 3x-8°+x+10°=180°-50°

Or, 4x=130°-2°

or, x=(128/4)=32°

so, the correct option is a) 32°.