Biomedical Admissions Practice Test

Answer: C - The area of the triangle is 281.68 ft².

Solution

Use the formula for the area of a triangle with sides a, b, and c:

A = [s(s-a)(s-b)(s-c)]^½ where s = (a + b + c)/2

Where a = 20 ft
b = 40 ft
c = 56 ft

s = (20 ft + 40 ft + 56 ft)/2 = 58 ft

A = [58 (58-20)(58 - 40)(58 - 56)]^½= 281.68 ft²