Question

the sum of two angle of triangle is80 and their difference is20 . find the angle of the triangle

Answer 1

Answer:

the angles are 50° and 30°

Step-by-step explanation:

let the angels be x and y

x + y = 80

x - y = 20

by adding we get

2x = 100

x = 100/2 = 50

x + y = 80

50 + y = 80

y = 80 - 50 = 30