Question

The area of a triangular sail is given by the expression 12bh, where b is the length of the base and h is the height. What is the area of a triangular sail in a model sailboat when b = 10 inches and h = 6 inches?

Answer 1

A = (1/2)bh
A = (1/2)(10 in)(6 in) . . . . . put the given numbers in the formula
A = 30 in² . . . . . . . . . . . . .do the arithmetic

The area of the sail is 30 in².