Precalculus 2

Use Heron's formula to find the area of the triangle. Round to the nearest square foot. Side a = 10 feet Side b = 10 feet Side c =4 feet The area is approximately square feet.Find the distance across the lake from A to C, to the nearest yard, using the measurements shown in the figure. A 160 yd 830 135 yd The distance across the lake from A to C is | yards. (Round to the nearest yard as needed.)A piece of commercial real estate is priced at $3.25 per square foot. Find the cost, to the nearest dollar, of a triangular lot measuring 220 feet by 400 feet by 430 feet. The cost of the lot is $ (Round to the nearest dollar as needed.)