Q.

The measure of an angles which is five times is supplement is .


Class:                9


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a

36°

b

30°

c

150°

d

180° 

answer is D.

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Detailed Solution

Let angle is 5 times its supplement let the angle be x and its supplement by y.
Then- x = 5y …(i)
As. x and y supplementary
x + y = 180°
According to ques 4 ion
x + y = 180
5y + y = 180
6y = 180
y = 30
x = 5y
x = 30 × 5
x = 180°
Hence. The answer is option (4)
  
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