Math, asked by roopakrishna, 3 months ago

AB and AC are opposite rays if (a-3b)=20° , fond a and b .

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Answered by Anonymous

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Answer:

a=140 nd b= 40

Step-by-step explanation:

a+b=180 (linear pair )

a-3b=20 subtracting both

4b=160 b = 40 then

a= 180-40= 140

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