SAT MATH FORMULAS

Circumference

2πr

Volume Of A Cone

πr²(h/3)

(x+b)²

x²+2bx+b²

Area of a Circle

πr²

Distance Formula

radical- (x2-x1)²+(y2-y1)²

Equation of A Circle

(x-h)²+(y-k)²=r² (h,k)

Volume of a Pyramid

1/3(B)(H)

Volume of Prism

Base x Height

Area of Sector

n/360 x πr²

Length of Arc

n/360 × 2πr

Volume of Cylinder

π(r²)(H)

Volume of Sphere

4/3πr³

Probability

#of possibilitys that meed conditions/# of equally likely possibilities

45-45-90 Triangle

30 - 60- 90 Triangle

Congruency Theroms

AAS

SAS

ASA

Similar Therms

AAA

SAS

SSS

(A+B)²

a²+2ab+b²

(A-B)²

a²-2ab+b²

(a-b)²

(a+b)(a-b)

Area Of A Triangle

1/2)(b)(H)

Work Formula

W=rt

w=amount of work done

r=overall rate

t=time spent

Sum of Quadratics Solutions

-b/a

Product of Quadratic Solutions

C/a

Midpoint of two intersecting points =

Axis of Symmetry

Vertex Formula

y=a(x-h)²+k

(h,k)

Factored Quadratic Form

y=a(x-a)(x-b)

Vertex

-b/2a

Quadratic Solutions

b²-4ac>0( 2 real solutions)

b²-4ac=0 ( 1 real solution)

b²-4ac<0( No real solutions)

Congruent Angles

Vertical

Alternate Interior

Alternate Exterior

Corresponding angles

Polygon Sum of Interior Angles

180(n-2)/n

n=# of sides

Surface Area of a Right Prism

2LW+2LH+2WH

Surface Area of A Cube

6s²

Surface Area of A Cylinder

2πr²+2πrh

Additon of # does what to mean

#> than mean brings mean up

#< less than mean brings it down

Mean = Median when

When counter #’s same distance from Median

Complex Conjugate ( a²+b²)

(a+bi)(a-bi)

Exponential Growth/ Decay

y=a(1+- r)^x

Simple Intrest

A=Prt

Area of Equilateral Triangle

A=√3s²/4

Compound interest

A=p(1=r/n)^nt