Question

Each angle of a square is of measure-

• A. ${120}^0$
• B. ${90}^0$
• C. ${60}^0$
• D. ${180}^0$

Answer 1

The correct option is B ${90}^0$

$\Rightarrow$ Squares have $4$ equal sides and the sum of the angles always equals ${360}^o$.

Here, quadrilateral $ABCD$ is a square.

$\Rightarrow$ We know that all four angles of a square are equal.

Let measure of each angle of a square is $x$

$\therefore$ $\angle A=\angle B=\angle C=\angle D=x$

$\therefore$ $x+x+x+x={360}^o$

$\Rightarrow$ $4x={360}^o$

$\Rightarrow$ $x={90}^o$

$\therefore$ Measure of each angle of a square is ${90}^o.$