Find the value of x if AB is a straight line.
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Step-by-step explanation:
Since AB is a straight line, the sum of all the angles on AB at a point O is 180o.
∴(3x+7)o+(2x−19)o+x=180o (Linear angles)
⇒6x−12=180⇒6x=192⇒x=32o.
So, ∠AOC=(3x+7)o=(3×32+7)o=103o,
∠COD=(2x−19)o=(2×32−19)o=45o,∠BOD=32o.
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Answer:
Find the value of x if AB is a straight line.
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