volume & surface area of solids objective: find the volume & surface area of cylinders,...
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Volume & Surface Area of Solids
Objective: find the volume & surface area of cylinders, prisms, cones, pyramids and spheres
How are volume formulas related to area formulas?
Solid of Revolution: A 3-D figure “swept out” by rotating a
2-D figure around an axis
Ex 1) Name the solid that would be created
Ex 2) Name the solid that would be created
Ex 3) Name the solid that would be created
Ex 4) Name the solid that would be created
Volume Number of units it takes to fill the object
Number of units it takes to cover the outside of the object
Surface Area not including the “top” and “bottom”
Surface Area
Lateral Area
Volume, Surface Area, or Lateral Area?
The amount of water a cylindrical glass can hold
The amount of wrapping paper to wrap a box
The amount of water needed to fill a fish tank
The amount of paper wrapped around a soup can
The amount of cardboard used to make a paper towel holder
Volume = (Area of Base)(Height)
1. Type of solid: ____________________
Height of solid: _________________
Shape of base: _________________
Area of base:
V SA
2. Type of solid: ___________________
Height of solid: _________________
Slant height:______________
Shape of base: _________________
Area of base:
V SA
3. Type of solid: ____________________
Height of solid: _________________
Shape of base: _________________
Area of base:
Area of each face: V SA
4. Type of solid: ____________________
Height of solid: _________________
Shape of base: _________________
Area of base:
Perimeter of base:__________________
Slant height: V SA
5. Type of solid: _________________
V
SA
6. Type of solid: _______________________
Height of solid: _________________
Shape of base: _________________
Area of base:
V
1. A circle has a radius of 15 cm. What is the volume of the sphere made by rotating this circle?
2. A rectangle has a length of 3 m and a height of 5 m. What is the volume of the cylinder made by rotating this rectangle?
3. An isosceles triangle has base of 20 ft and an altitude of 30 ft. What is the volume of the cone made by rotating this triangle?
1. Given a sphere with a radius of 200 cm3, find the area of the perpendicular cross section right through its center
2. Given a cylinder with radius 7 in and height 10 in, find the area of a cross section that is parallel to its base
3. Given a cone with a radius of 6 ft and a height of 12 ft, find the area of the triangle formed by a perpendicular cross section down through the cone’s center