Solve the Problem. -The Area of a Triangular Poster Is 864 Square Centimeters

Multiple Choice

Solve the problem.
-The area of a triangular poster is 864 square centimeters. Its altitude is 10 feet shorter than twice its base. Find the lengths of the altitude and base.

A) base = 32 cm; altitude = 54 cm
B) base = 16 cm; altitude = 54 cm
C) base = 64 cm; altitude = 13.5 cm
D) base = 32 cm; altitude = 27 cm