Question

If sum of two angle in the triangle is 80°, and difference is 20° , find all the angles of the triangle.​

Answer 1

Answer:

30°, 50°, 100°

Step-by-step explanation:

Let angles be A, B and C.

Traingle rule,

A + B + C = 180° ........ eq1

According to question,

A + B = 80° ........ eq2

A - B = 20° ........ eq3

So, Adding eq2 and eq3 we get,

2A = 100°

So, A = 50°

Then putting the vaule of A in eq2 we get, B = 30°

Then putting the vaule of A and B in eq1 we get, C = 100°