# Chapter 10

## 10.1 area of parallelogram and trapezoids

Formulas

Parallelogram = A=bh

The base of a parallelogram is any side length

Trapezoid = A=1/2(b1+b2)h

the two side that are parallel are the bases of a trapezoid

## 10.2 Formulas and how to solve

A=area

c=Circumference

A=pi*2^2

A=pi*r^2

A=3.14(5)2

A=78.5

c=pi*d

c=pi*d

c=3.14*24

c=75.36

c-=2*pi*r

c=2*pi*r

c=2*3.14*36

c=226.08

Area of a Circle - MathHelp.com - Math Help

## 10.3 Three-dimensional figures

the formula is V=pi*r^2*h

A cone's formula is V=1/3*pi*r^2*h

The formula for a sphere area is A=4*Pi*r^2

10.2 Representations of Three Dimensional Figures

## surface area and nets

what is surface area of polyhedron is the sum of the area of its faces and what is a net used for is a two-dimensional patter that forms a solid when folded

Formula pyramid S=2B+Ph

Cylinder S=2B+Ch=2*pi*r^2+2*pi*rh

## Slant Height

what is slant height it is any face that is not the base.

The formula for slant height is

Example

S=B+1/2*P*l

S=27.7+1/2(24)(6)

S=99.7

## Chapter 10.6 Volumes of Prisms and Cylinders

Volume is the amount of space it takes up in a area

Formulas

V=1/3Bh

V=Bh

The = The big B area of the base

Visualizing the Volume of a Sphere Formula | Deriving the Algebraic Formula With Animations

## Formulas

Trapezoid A=1/2(b1+b)h

Parallelogram A=bh

Cylinder A=Pir^2

Pyramid A=1/2bh

surface area of a Pyramid S=B+1/3Pl

Cone S=B+1/3Pl

Surface area of a Sphere S=4pir^2

Volume Of A Prism And Cylinder V=Bh

Volume of a Pyramid And Cone V=1/3Bh

Surface area of a prism S=2B=Ph

Surface area of a cylinder S=2B=Ch