1. Perimeter, Area, and Volume 3102.4.1 Using algebraic expressions solve for measures in geometric figures as well as for perimeter, area, and volume.

2. PERIMETER To find the perimeter of a rectangle or square use the appropriate formula or just add up the length of the sides! rectanglesquare P= 2w + 2l P=4s

3. Find the perimeter of the rectangle P = 2w+2l P = 2(5)+2(8) P = 10 + 16 P = 26 8 5 8 5

4. Find the perimeter of the irregular figure. Just add up all the sides 5 3 8 3 5 P=5+5+3+3+8 P=24

5. Formulas for FINDING AREA Circle Triangle Rectangle Parallelogram

6. Find the area of a circle 6

7. Find the area of a Triangle 7 10 A= b h A= (10)(7) A= 35

8. Find the area of a Rectangle A= lw A= (25)(7) A= 175 25 7

9. Finding the area of a parallelogram A= bh A=(7)(4) A= 28 4 7

10. FINDING VOLUME V= lwh V=(3)(6)(4) V=72 3 6 4

11. Finding the volume of a cylinder 5 12 V= 942.48

12. Use Algebraic Expressions A = lw A = (x+5)(2x) A = 2x 2 +10x x + 5 2x Find the area first! Now find the perimeter! P = 2l + 2w P = 2(x+5) + 2(2x) P = 2x+10 + 4x P = 6x+10