2 Perimeter, Area, Volume and Surface Area Review of vocabulary and formulas
3 ObjectivesKnow the definitions of perimeter, area, volume and surface areaUnderstand units, square units, and cubic units and how they relate to perimeter, area and volumeUse formulas to calculate perimeter, area, volume, and surface area
4 Roll the DiceRoll the dice and define the geometry vocabulary word next to your number.
5 Dice Roll Number Match Area 2. Circumference 3. Perimeter 4. Surface Area5. Volume6. Cubic Unit7. Square Unit8. Unit9. Radius10. Diameter11. Circle12. Cube13. Prism14. Cone15. Pyramid16. Cylinder17. Triangle18. Trapezoid19. Rectangle20. Sphere
6 PerimeterMeasure of the distance around a figure (polygon) made up of straight lines called sides (s, or l & w)Square, triangle, rectangle, trapezoid, etc. or an irregular 2-D (flat) multi-sided shape.
7 Circle Perimeter?If the shape has curved lines instead of straight we call it Circumference.Use radius (r)- distance from the center to the edge of the circlediameter (d) – distance across the circle passing through the centerd = 2r or r = ½ d
8 Units Standard or metric Measurement of the side or distance Perimeter and circumference
9 Square unitsArea – measure of a shape’s (2-D Flat figures) surface, space inside the perimeterWhy do we call it “square”??
10 How do you find area of a figure that doesn’t have a formula? PSSA Formula Sheet2-D figures – Square, parallelogram, rectangle, triangle, trapezoid, circle, and regular & irregular polygonsHow do you find area of a figure that doesn’t have a formula?
11 Check-up – Perimeter, Circumference and Area Handout of examplesLesson Practice: Perimeter, Circumference, & Area
12 Calculating Surface Area Some formulas – cube, rectangular prism, sphere, & cylinderNo Formula?Find area of each face and add to find the total surface area
13 What unit is used for Surface Area? Area of each shape that makes up a 3-D solidhow much exposed area a solid object hasAnswer: Square units
14 Check-up – Surface Area Handout of examplesLesson Practice – Surface Area
15 Cubic UnitsVolume: how much three-dimensional (3-D) space a solid occupiesWhy do we call it “Cubic”??