Solve the Problem $10 \mathrm { ft }$ Long, and the Height of the Triangle Is

Multiple Choice

Solve the problem.
-An isosceles triangular plate is submerged vertically in seawater, with its base on the bottom. The base is $10 \mathrm { ft }$ long, and the height of the triangle is $10 \mathrm { ft }$ . Find the force exerted on one face of the plate if the water level is $2 \mathrm { ft }$ above the base of the triangle. Seawater weighs $64 \mathrm { lb } / \mathrm { ft } ^ { 3 }$ . Round your answer to one decimal place if necessary.

A) 3584 lb
B) 1194.7 lb
C) 1792 lb
D) 341.3 lb