Question

Q.11:-Two angles measures (30-a) ° and (125+2a)°. If each one is a supplement of the other then the value of a is _____________. *


45°

25°

35°

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Answer 1

Step-by-step explanation:

Since they are supplementary.....

sum of both angle is 180°..

$(30 - a) + (125 + 2a) = 180 \\ \\ 155 + a = 180 \\ \\ a = 180 - 155 \\ \\ a = 25$

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Answer 2

Answer =25°

Refer to the attached image for answer