What is the volume of the regular pyramid below?

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8

What makes a trapezoid an isosceles trapezoid?

Cole says the distance between points (-5,0) and (0,-5)is 5 units. is he correct? explain why or why not.