Question

If the sum of 2 angles is 90grade and their differences is 9degree, find the angles in degree​

Answer 1

Answer:

taking the angles x and y

Step-by-step explanation:

x + y = 90----(i)

x - y = 9 ---- (ii)

x=y+9---(iii)

substituting (iii) in (i)

x + y = 90

y+9+y=90

2y +9 =90

2y =90-9

2y=81

y=81/2

y=40.5

substituting the value of y in (iii)

x=y+9

x=40.5+9

x=49.5