perimeter of rectangle = all sides added = 3+3+7+7 =20
volume of sphere = 4/3 x π x r(cubed) = 4/3 x π X 4(cubed) = 268.08257
area of triangle = base x height / 2 = 5 x 6 / 2 =30/2 =15
volume of pyramid = base height x base width x height / 3 = 300
side of triangle ---> use Pythagoras theorem so a(squared) + b (squared) = c(squared) 4(squared) + 3(squared) = c(squared) 16 + 9 = c(squared) 25 = c(squared) c = 5
