Solve. -The Area of a Triangular Poster Is 1480 Square Centimeters

Multiple Choice

Solve.
-The area of a triangular poster is 1480 square centimeters. Its altitude is 6 feet shorter than twice its base. Find the lengths of the altitude and base.

A) base = 40 cm; altitude = 37 cm
B) base = 20 cm; altitude = 74 cm
C) base = 40 cm; altitude = 74 cm
D) base = 80 cm; altitude = 18.5 cm