1. USING FORMULAS IN GEOMETRY Geometry CP1 (Holt 1-5)K. Santos

2. Area Area (A) is the number of nonoverlapping square units of a given size that exactly cover the figure A = 36 square units A = 18 square units A = 7 square units A = ????? 14 ????

3. Area of Rectangle

4. Area of a Square

5. Area of a Triangle

6. Example—finding a side

7. Perimeter Perimeter (P) of a plane figure is the sum of the side lengths of the figure P = 24 P= 18 P = 16 P= ?

8. Perimeter Formulas Rectangle:l P = 2l + 2w w Square: P = 4s s Triangle: P = a + b + c a b c

9. Circle Formulas