Question

If PQRS is a parallelogram, then $\angle Q-\angle S$ is equal to :

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

Answer 1

The correct option is D $0^{\circ }$

Given that PQRS is parallelogram,

Opposite angles in a parallelogram are equal.

i.e, $\angle P=\angle R$ and $\angle Q=\angle S$

$\therefore$ If $\angle Q=\angle S$ then $\angle Q-\angle S=0°$

Hence, the answer is $0°.$