Question

- Two complementary angles are in the ratio 4:5. Find the angles.
Two supplementary angles are in the ratio 5:7. Find the angles.​

Answer 1

Answer:

40 and 50

Step-by-step explanation:

4x +5x=90

9x=90

X=90÷9

X=10

Answer 2

Answer:

first let us consider that the angles are 4x and 5x

we know that complementary angles=90degree

so, 4x + 5x=90

9x=90

×=90÷9

×=10

so 4x=40

and 5x=50

let the angles be 5x and 7x

we know that supplementary angles=180degree

so, 5x+ 7x= 180 degree

12x=180

x=15

so, 5x = 75

and 7x=105

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