If you rope off a triangular piece of land with sides of 150 ft, 202 ft, and 176 ft, what is the area of the roped off land? Round your answer to the nearest square foot.

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles.

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?