Question

If ratio between two complementry angles are in ratio 4:5 then find angles

Answer 1

sum of 2 complimentary angles=90 degree

4x+5x=90
9x=90
x=90/9
x=10

First angle = 4x = 4×10 = 40degree

second angle = 5x = 5×10 = 50 degree

Answer 2

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Here is The Solution

The definition of a complementary angles is that the sum of the angles is equal to 90. thus we have the ratio 4:5. We then set up the problem as follows 4x + 5x=90. Then you would add (4+5)x=9x 9x=90 divide both sides by 9 and x is equal to 10. Then we go back and multiply to find the value of each angle. ie 
4(x)=4(10)=40 5(x)=5(10)=50. The angle values are 40 and 50.

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