Question

On the Cartesian plane. PQR is an isosceles triangle.
The perimeter of $\Delta PQR$ is

• A. 16 units
• B. 18 units
• C. 20 units
• D. 22 units

Answer 1

Answer: (A)

16 units

$PQ=\sqrt{3^2+4^2}=5units=PR$
$QR=8-2=6$
Perimeter of $\Delta PQR=PQ+QR+PR$
$=5+6+5$
$=16units$