Heron’s formula gives a method of finding the area of a triangle if the lengths of its sides are known. Suppose that a, b, and c are the lengths of the sides. Let s denote one-half of the perimeter of the triangle (called the semiperimeter)—that is,

Then the area of the triangle is given byUse Heron’s formula to solve each problem.

Find the area of the Bermuda Triangle, to the nearest thousand square miles, if the “sides” of this triangle measure approximately 960 mi, 1030 mi, and 1030 mi.

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S = ½(a + b + c).