Question:
Two supplementary angles are in the ratio 4: 5. Find the angles?
Solution:
Supplementary angles are in the ratio 4: 5
Let the angles be 4x and 5x
It is given that they are supplementary angles
Hence 4x + 5x = 180
9x = 180
x = 20
Hence, 4x = 4 (20) = 80
5(x) = 5 (20) = 100
Hence, angles are 80 and 100
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