Composite 3D Figures 1

Use the composite shape below to answer the questions that follow. Move the points J, E, C, and B to change the parameters and find different scale sizes and change the size of the shape.
a) What happens to the volume and the surface area of the figure above, if all the dimensions were decreased by 50%? b) All the dimensions of the original figure have been changed by the same percentage and the new surface area is 1,525.8 cm2 (rounded to the nearest tenth). What is the percent change from the original figure to the new figure? c) What is the volume of the figure in part b?