Question

If one angle of an isosceles triangle is ${30}^0$ find the other angle.

Answer 1

Step:Finding the other angle.

In an isosceles triangle , two adjacent angles are equal.

Sum of angles of a triangle is ${180}^0$

Let the other angles be $x^0$,

From given information we get ,

$$\begin{gathered} =>x^0+x^0+{30}^0={180}^0 \\ =>2x^0={180}^0-{30}^0 \\ =>2x^0={150}^0 \\ =>x^0=\frac{{150}^0}{2}={75}^0 \end{gathered}$$

Hence the other angle is ${75}^0$.