8. In a triange ABC, AB = 4.8cm, BC = 3.8 cm and A ^B C =42 degrees
P is the foot of the perpendicular from A to BC.
i. Calculate the area of triangle ABC
ii. Deduce the length of AP.
Okay, I don't understand what they mean by "P is the foot of the perpendicular from A to BC"
And how would i go about deducing the answer? Help