Two angles of a triangle are 60o and 40o. Find its third angle.
80o
85o
70o
60o
Given that - Two angles of a triangle are 60o and 40o.
Sum of angles of a triangle = 180o
Therefore third angle = 180o−(60o+40o)
= 80o
A triangle with two angle each of 90o and 60o, has its third angle _______ .