Unit 2: Day 7

Today, students will learn about the Volume Formulas of Prisms, pyramids, cylinders, cones, and spheres.

Prism

area of base × height

Cylinder

πr2h where r = radius, h = height

Cone	where r = radius, h = height

Pyramid

  or area of base x height
                     3

Sphere

where r = radius

also the answer is always presented in ans3

QUIZ

1) Find the volume of the prism                  

2) Find the volume of the cone.

3) The radius of a sphere is 6.7 cm.  Find the volume.

ANSWERS

1)  Prism= area of base x height    SO our base is (13 x 3) x (5)...Therefore V=195cm3

2) Cone= pie r2 h=  r=16  h= 34   so (3.14 x (16)2 x 34) divided by 3.   V=9110.2 cm 3

                     3

3) Sphere= 1259.83cm 3