CUET Preparation Today
CUET
General Aptitude Test
Quantitative Reasoning
Mensuration: 2D
ΔPQR is an isosceles triangle and PQ = PR = 2a unit, QR = a unit. Draw PX ⊥ QR, and find the length of PX.
$\sqrt{5}a$
$\frac{\sqrt{5}a}{2}$
$\frac{\sqrt{10}a}{2}$
$\frac{\sqrt{15}a}{2}$