A gemstone is cut in the shape of a triangular pyramid. The area of the base of the pyramid is 42 square millimeters. The 1 height of the pyramid is 4 millimeters. What is the volume of the gemstone? (Recall the formula V = 3 Bh) 56 cubic millimeters 84 cubic millimeters 168 cubic millimeters 336 cubic millimeters

Answer this two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: two right triangles abc and edc have a common vertex c. angle abc and edc are right angles. ab is labeled 13 feet, ac is labeled 15 feet, ec is labeled 10 feet, and ed is labeled 4 feet.what is the approximate distance, in feet, between the two poles? 11.14 feet16.65 feet14.35 feet15.59 feet