Question

The sum of two angles of a triangle is 80° and their difference is 20°. Find all
the angles of the triangle.​

Answer 1

Step-by-step explanation:

x+y+z=180⁰

given x+y=80⁰

and x-y=20⁰

- + -

__________

2y=60; y=30⁰

x+30⁰=80⁰; x=50⁰

80⁰+z=180⁰

z=100⁰