Question

Find the area of the triangle.
22 ft
13 ft
12 ft
Question content area bottom
Part 1
The area of the triangle is
  
enter your response here ft squared.

Answer 1

Use Heron's formula. For sides 22, 13, 12:
s = (22+13+12)/2 = 23.5
Area = sqrt[s(s−22)(s−13)(s−12)] = sqrt[23.5·1.5·10.5·11.5] = sqrt(68103)/4 ≈ 65.24 ft^2.

So the area is about 65.24 ft².