Question

its supplementary angle.
15. If a pair of supplementary angles are in the ratio 4:5 then find the smaller angle.
16. Find the complementary and sunnlementary​

Answer 1

Answer:

80°

Step-by-step explanation:

Let the angles be 4x And 5x

Sum of supplementary angles =180°

Therefore 4x+5x=180°

9x=180°

x=20°

4x=4×20°=80°

5x=5×20°=100°

Hence the smaller angle is 80°.

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