Question

3. In the given figure, angle AOC and angle BOC form a line AB. If a-b = 80°, find the value of a and b.
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Answer 1

Answer:

ANSWER

To find : values of a and b

a−b=80

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...(1)

a+b=180 [Linear pair]

Add both equations

2a=260

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a=130

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Put a=130

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in equation (1)

b=50

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Answer 2

Step-by-step explanation:

AOC-BOC=80

AOC=80+BOC

AOC=80+x

AOB=AOC+BOC

AOB=80+x+x

180=80+2x

2x=180-80

2x=100

x=100/2

x=50