Question

Opposite angles of a quadrilateral $PQRS$ are equal. Find $RS$, if $PQ=5$ cm.

• A. $5$ cm
• B. $10$ cm
• C. $4$ cm
• D. $6$ cm

Answer 1

Answer: (A)

$5$ cm

If $\angle 1=\angle 3$
& $\angle 1+\angle 2+\angle 3+\angle 4={360}^o$
$\therefore \angle 2+\angle 4={180}^o$
& $\angle 2=\angle 4$
$\therefore$ $PQRS$ is parallelogram
So the opposite sides are equal and parallel.

$PQ=RS=5$ cm