Formulas by Alexa Alvarez

1 of 36

Slide Notes

Formulas

Published on Nov 19, 2015

No Description

PRESENTATION OUTLINE

FORMULAS

Alexa Alvarez 3A

Perimeter
Rectangle:
P=2l+2w
P=2(l+w)

Photo by mark sebastian

Circumference
Circle:
2兀r
兀d

Photo by 2002ttorry

AREA

Rectangle
A= lw
A= bh

Photo by yewenyi

Triangle
A=1/2bh
A= bh/2

Photo by Joe Shlabotnik

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

Photo by christian.senger

Regular polygon
A=1/2a

Photo by Polygon Homes

Circle
A=兀r²

Photo by jeroen_bennink

Surface Area

Cube
S= 6s²

Photo by Gabriel 'Briel' Rocha

Prism(lateral)
S= Ph

Photo by Doha Sam

Prism(total)
S=Ph + 2B

Photo by comedy_nose

Pyramid (lateral)
S=1/2Pl

Photo by Damon | Photography

Pyramid (total)
A=1/2Pl+B

Photo by tomlane_

Cylinder (lateral)
A=2兀rh

Photo by Raoul Pop

Cylinder (total)
A=2兀rh+2兀r²
A= 2兀r(h+r)

Photo by Mr.Thomas

Cone (lateral)
S= 兀rl

Photo by miskan

Cone (total)
S=兀rl+兀r²
S=兀r(l+r)

Photo by garryknight

Sphere
S= 4兀r²

Photo by just.Luc

Volume

Prism or cylinder
V=Bh

Photo by .aditya.

Pyramid or cone
V=1/3 Bh

Photo by Thomás

Sphere
V=4/3兀r³

Photo by Andy Magee

Special right triangles

30° 60° 90°
x, x√3, 2x

Photo by ais3n

45° 45° 90°
x, x, x√2

Photo by jev55

Pythagorean theorem
a²+b²=c²

Photo by zeevveez

Distance formula
d=√ (x2-x1)² +(y2-y1)²

Photo by WanderingtheWorld (www.ChrisFord.com)

Slope of a line
m=(y2-y1)\(x2-x1)

Photo by Paul Nicholson

Midpoint formula
M=(x1+x2/2)(y1+y2) /2)

Photo by CsabX

Quadratic formula
x=-b±√b2-4ac/2a

Photo by Chapendra

Slope intercept form of an equation
y=mx+b

Photo by AhmadHashim

Point slope form of an equation
y-y1=m(x-x1)

Standard form of an equation
Ax +Bx =C

Simple interest formula
I=prt

Alexa Alvarez