1. Tyler Walker 2 nd period By: Tyler Walker 2 nd period

2. Perimeter.  The distance around a two-dimensional shape  P= 4s

3. Word Problem: IIf the length of this rectangle is 4 and the width is 10, what is the perimeter? AAnswer: 28

4. Square.  A polygon with 4 equal sides.  P= 4s A= s ²

5. Word problem:  If the length of this square is 3, and all sides equal the same, then what is the width?  Answer: 3

6. Rectangle  a parallelogram with four right angles.  P=2l+2w or P= 2(l+w)

7. Word problem:  If the width of this rectangle is 10 and the length of the rectangle is x2 of the width…what is the length?  Answer: 20

8. Circumference-  The distance around a closed curve.  Circle  C= 2 x (pi) x r or C= (pi) x diameter.

9. Word problem. IIf the diameter of a circle is 12, then what is the circumference? RRemember! ( C= ¶d) AAnswer: 37.68

10. Area (square, rectangle, triangle, trapezoid, circle.)  Area is a quantity that expresses the extent of a two-dimensional surface or shape in the plane.  Square: A=s ² lw  Rectangle: A= lw or A= bh  Triangle: A= ½ bh or bh/2  Trapezoid: A= ½ (b1 + b2)h  Circle: A= r ²

11. P- represents the perimeter of the base of a 3D figure.

12. - represents the area of the base of a 3D figure.

13. Surface area. Circle: S= 6s²  Prism: S= Ph or S= Ph + 2B  Pyramid: S= ½ Pl or S= ½ Pl + B  Cylinder: S= 2² ¶r h + 2¶r² or S=2¶r (h+r)

14. Volume- how much three-dimensional space a substance (solid, liquid, gas, or plasma) or shape occupies or contains.  Prism: V= Bh  Cylinder: V= Bh  Pyramid: V= 1/3 Bh  Cone: V= 1/3 Bh  Sphere: V= 4/3 ¶r³

15. Word problem.  If the length, width and height of a square is 12, the what is the volume?  Answer: 1,728

16. P.E.M.D.A.S  Letters in PEMDAS stand for: P - Parenthesis E - Exponents MD - Multiplication or Division from left to right A/S - Addition or Subtraction from left to right

17. Pi (3.14159265)  The ratio of the circumference to the diameter of the circle.  ¶= 3.14 

18. Pythagorean Theorem aa² + b²= c²

19. Simple interest formula  I= prt

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