If a triangular sail has a horizontal length of 30 ft and a vertical height of 83 ft , Determine the area of the sail?
a. 1,245 ft2
b. 1,155 ft2
c. 201 ft2
d. 2,490 ft2
a. The area of a triangle is 1/2 (base) x (height). Using the dimensions calculated as, area = 1/2 x (30) x (83) or 1,245 ft2. If you select b, you assigned 83 ft as the value of the hypotenuse rather than a leg. If you select c, you found the perimeter of the triangular sail. If you select d, you omitted 1/2 from the formula.