Answer:
The length of BC is 3.61 units.
Explanation:
√13=3.60555128=3.61 (Round off to two places)
According to Pythagoras theorem,
Hypotenuse²=Perpendicular²+Base²
H²=P²+B²
Perpendicular given=3 units
Base given=2 units
H²=3²+2²
H²=9+4
H²=13
H=√13 units
H=3.61 units (approx)