Question

In an equilateral triangle, each angle is of measure _____________.

Answer 1

In an equilateral triangle all interior angles and all sides are same.

We let an equilateral triangle, $△PQR$.

In the $△PQR$, $x+x+x={180}^o$

$3x={180}^o$

$x=\frac{{180}^o}{3}={60}^o$

$x={60}^o$

Hence, In an equilateral triangle, each angle is of measure ${60}^o$.