Question

20. If one angle of a triangle is 56' and
the difference of the other two
angles is 20', then find the other two
angles. *​

Answer 1

Step-by-step explanation:

let other two sides be x and y

sum of all angles of triangle=180

56+x+y=180

x+y=180-56=124

x-y=20(given)

x=20+y

x+y=124

20+y+y=124

20+2y=124

2y=124-20

2y=104

y=104/2

y=52

x+y=124

x+52=124

x=124-52

x=72

other two angles are 52and72