Surface Area The sum of the areas of each face on a 3-D figure To find surface area, add the area of each face together Front-2 X 5 = 10 Back-2 X 5 = 10 Top-2 X 3 = 6 Bottom-2 X 3 = 6 Left-3 X 5 = 15 Right- 3 X 15 = 15 Sum= 62 square units 2 3 5
Area Use the formula to find area! Triangle=base X height ÷ 2 Rectangle= length X width Parallelogram = base X height Trapezoid = (base1 + base 2) ÷2 X height Circle = π X radius 2 The square units of measure inside an object
Volume The amount of space an object occupies measured in cubic units Volume=base area X height V= 6 X 3 X 4 V= 72 cubic units 6 3 4
Perimeter The distance around an object or polygon To find perimeter add all the sides together P= P=34 units 10 12
Directions Get a piece of notebook paper, write your name on top. On your notebook paper, number 1 to 15 Determine if each situation is perimeter (P). Area (A), Surface Area (SA) or Volume (V) Write the abbreviation beside each number.
1. wrapping paper on a gift box
2. Label on a can of food
3. how much paper to cover the bulletin board
4. how much rice will fill a bowl
5. how much paint is needed to paint the walls of room
6. how many tiles to cover the bathroom floor
7. fencing around a garden
8. the amount of toys that will fit in a toy box
9. how much cardboard to make a box
10. how much fabric to make a pillow
11. how much wood to make a picture frame
12. how much stuffing to fill a pillow
Answers 1.SA 2.SA 3.A 4.V 5.SA 6.A 7.P 8.V 9.SA 10.SA 11. P 12. V