mccaar

=Mcar520 Chapter 9 Wiki= Objective: Develop the concepts of maximizing and minimizing Surface area. SA: L=length W=width H= Hight. SA= 2HW+2LH+2Wh V= Volume V= L*W*H
 * 7.1** **Surface area and volume**Objective: Explore ratios of Surface area and volume.
 * Surface area and volume formulas.** //(For a right prism)//

Objective**:** Define and use a formula for finding the SA for a right prism. Objective: Define and use a formula for finding the V for a right prism. Objective : Use Cavalieri's priciple to develop a formula for the V of a right oblique prism. Altitude: Distance between two points where the line that runs through those points are perpendicular to the base. Hight: Length of the Altitude
 * 7.2 Surface area and Volume of a prisms**
 * Bold words**
 * Formulas

Examples** Volume of triangular prism You are given a triangular prism with the sides of the triangle of 3,4,5 and a hight of 5. The area forumla for a triangle is 1/2 b*h. 1/2*3*4 =3 is the area of the base you take that and times it by the hight. 3*5= 15 the area of the prism is 15 cubed. Surface area of a triangular Prism You're given the same triange as above. The formula for the surface area of a triangular prism is the area of the bases *2 + the area of the 3 sides.The area of one of the bases is 3*2 =6 now you have the area of the bases you need to add the area of the three sides. 3*5= 15 4*5 =20 5*5= 25 6+15+20+25=84 the Surface area of the triangular prism = 85 units squared. Volume of a pyramid You are given a square pyramid with sides of 5 and 5 and a hight of 10. The formula for the volume of a pyramid is the 1/3 the area of the base times the hight. Surface area of a pyramid Volume of cylinder Surface area of cylinder

Volume of a cone

Surface area of a cone

Volume of a sphere

Surface area of a sphere