Question

A sailboat sail is triangular with a height 3 feet greater than its base. If the sail's area is 90 square feet, find its base

and height.
←
The base of the sail is
and the height is

Answer 1

Height 15 feet

Base 12 Feet

Explanation:

The formula to find the area of a triangle is A= (0.5) x base x height, so if the area is 90 then before it was halved it must be 180 so the base x height must equal 180 and the only number that equal 180 when multiplied with a difference of 3 between them is (15,12) so thats are answer. I know this is right because if I put it through the area formula I get 90.

A=(.5) x 12 x 15

A=(.5) x 180

A= 90