perimeter  the border or outer boundary of a two- dimensional figure.  Square P=4s  Rectangle p=2l+2w or p=2(l+w)

Word problem What is the perimeter of a square if the side length is 2. Solution 8 What is the perimeter of a rectangle if if the length is 4 an the width is 2. Solution is 12

circumference  The area of a circle, the outer boundary.  Example, Circle C=2 r or *d

Word problem  What is the circumference of a circle if the diameter is 4.  Solution 12.66

Area  The area within the space, the space or site on which a building stands; the yard attached to or surrounding a house.  Square A=s2  Rectangle A=lw  Triangle A=bh /2  Trapezoid A=1/2(b1+b2)h  Circle A=pi*r2

Word problem  What is the area of a square if the side is 4.  Solution 16  What is the area of a rectangle if the length is 5 an the width is 2.  Solution is 10  What is the area of a triangle if the base is 5 an the height is 8  Solution is 20

Word problem  What is the area of a trapezoid if the half # is 5 an b1 is 2 an b2 is 2 an height is 10  Solution 200

Big P  The perimeter of the base of a three dimensional figure.

Big B  The area of the base of a three dimensional figure.

Surface area  Cube (total) s=6s2  Prism (lateral) s=Ph  Pyramid (lateral) s=1/2 pl  Pyramid (total) s=1/2 pl +b  Cylinder (lateral) s=2*pi*r*h  Cylinder (total) s=pi*r*h+2*pi*r2  The extent of a 2-dimensional surface enclosed within a boundary.

Word problem  What is the surface area of a cube if the side is 4  Solution is 96  What is the surface area of a prisms side if big p is 8 an the height is 10  Solution is 80  What is the surface area of a prymaid

Volume  the amount of space, measured in cubic units, that an object or substance occupies.  Prism V=Bh  Cylinder V=Bh  Pyramid v=1/3Bh  Sphere V=4/3 pi*r3  Cone v=1/3 Bh

Word problem  What is the volume of a prism if big B is 4 an height is 8.  Solution 32  What is the volume of a cylinder if big B is 6 an the height is 9.  Solution is 54  What is the volume of a pyramid if the 1/3 is 2 an big b is 8 an height is 4  Solution is 64

Pi  =3.14 or 22/7

Pythagorean theorem  A2+b2=c2 the theorem that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides.

Word problem  A2+b2=c2

Simple interest formula  I = prt  Where, I = interest P = principal r = interest rate (per year) t = time (in years or fraction of a year)

Word problem  I = prt

PEMDAS  P=Punctuations  E=Exponents  M=Multiply  D=Divide  A=Add  S=Subtract

Word problem  (2*7)5  Solution 70

3d shapes  Shapes that have 3 dimensions

2d shapes  Shapes that have 2 dimensions