# Chapter 10

### Haley E

## 10.5 Surface Area of Pyramids and Cones

Surface Area for Pyramid- S=B+.5Pl (P=base of perimeter l=slant height)

surface area for a cone-S=pi.r*2+pi.rl

## 10.6 volumes of prisms and cylinders.

volume of a cylinder- pi.r*2h

V=Bh

lwh

12(8)(2) don't press enter till entire equation is in calculator.

## 10.7 Volumes of cones and pyramids

**Pyramid** V=1/3Bh

1/3(30*2)(15) don't press enter till entire equation in calculator

**Cone** V+1/3pi.r*2h

1/3pi(6)*2(12)

144pi simplify

452.16