Question

In $\Delta PQR$, $\angle R=\angle P$ and $QR=4cm$ and $PR=5cm$. Then the length of $PQ$ is?

• A. $4cm$
• B. $5cm$
• C. $2cm$
• D. $2.5cm$

Answer 1

The correct option is A

$4cm$

Explanation of the correct option:

It is given that $QR=4cm$ and $\angle R=\angle P$. So, it is an isosceles triangle.

This means that,

$PQ=QR\mathbf{}\mathbf{[}\mathbf{Property}\mathbf{}\mathbf{of}\mathbf{}\mathbf{isosceles}\mathbf{}\mathbf{triangle}\mathbf{]}$

Therefore, $PQ$ is equal to $4cm$.

Hence, option $\left(\mathrm{A}\right)$ is correct.