1) Using the formulas in this lab module for various shapes, calculate the volume of a solid ball made of concrete whose radius from core to outward point is 45mm. Showallwork.(4/3)()(r3)(4/3)()(453)Volume:81857.143mm3 2) Imagine the ball in 1) was cut in half, leaving two semi-circles, (imagine cutting a round lemon in half to leave two parts). What is the diameter associated with each of the halves? Show all work. 3) Calculate the density of the concrete ball in 1) if the weight of the ball is 188g. Show all work. 4) Calculate the density of a cube of unknown metal which weighs 38g and has a side of 4cm. Show all work