Question

Two complementary angles differ by 18 degree find the angles

Answer 1

Answer:

complementry angles are 90°

let the angles be x and y.

x-y=18°..........given-------(1)

x+y=90°.........given-------(2)

Add equation1 and equation2

x-y+x+y=90-18

(for your understanding, -y +y gets canceled.)

x+x=72°

2x=72°

x=72/2

x=36°

:x+y=90°............from equation2

36+y=90°

y=90-36

y=54°

therefore the two angles are 36°and 54°.

Answer 2

Answer:

answer is  99^

Step-by-step explanation:

complementry angle sum is 90^            

let the  angle is be- x^

and the second angle is 18 more than the other

so,

x+[x+18]=90^

2x=90-18

2x=72

x=36

so the smaller angle is 36^ and the larger angle [x+18] i.e. 36+18=54^

smaller angle=36^

larger angle=54^