The formula \(\text{A} = \sqrt{\text{s}(\text{s} - \text{a})(\text{s} - \text{b})(\text{s} - \text{c})}\) can be used to find the area A of a triangle. The variables a, b, and c are the side measures and s is one half the perimeter. Use to formula to find the area of a triangle with side lengths of 7 centimeters, 9 centimeters, and 10 centimeters.