Question

If a pair of supplementary angles are in the ratio of 4:2,find the angles

Answer 1

Answer:

Supplementary  angles add upto form

Two angles are in ratio 4:5 (given)

Let one angle be 4x and other be 5x

Hence 4x+5x=180 (supplementary angles)

⟹9x=180

⟹x=  9 180 =20

Hence two angles are

4x=4×20=80

5x=5×20=100\\  

Hence two angles are  

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Let the two angles be 4x and 2x

Then,

4x+2x=180

6x=180

x=180/6

x=30

Hence, 4x=(4×30)= 120degree

2x=(2×30)= 60 degrees