One of the equal angles of an isosceles triangle is of \[{{50}^{o}}.\] Find the measurement of third angle of the triangle.

One of the equal angles of an isosceles triangle is of \[{{50}^{o}}.\

1.	One of the equal angles of an isosceles triangle is of \[{{50}^{o}}.\] Find the measurement of third angle of the triangle.
A.	\[{{60}^{o}}\]
B.	\[{{70}^{o}}\]
C.	\[{{80}^{o}}\]
D.	\[{{90}^{o}}\]
E.	None of these
Answer» D. \[{{90}^{o}}\]