Question

Two angles are supplementary and one of them is three times as big as the other. What is the size of the smaller of the two angles?


A.
22

B.
30

C.
45

D.
50

E.
62

Answer 1

b is the answer as sum of supplentry angle is 180 so let a+b=180 and atq a=3b substitute the value of a nd u will. get ans

Answer 2

Answer: 45 degrees

Step-by-step explanation:

If the smaller angle is x°, then the larger angle must be 3 × x° = 3x°

Since they are supplementary, they must add to 180°

So x° + 3x° = 180°

⇒ 4x = 180

⇒ x = 180 ÷ 4 = 45

So the smaller of the two angles is 45°