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square rectangle parallelogram trapezoid triangle.

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Presentation on theme: "square rectangle parallelogram trapezoid triangle."— Presentation transcript:

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2 square rectangle parallelogram trapezoid triangle

3 Perimeter is the “fence around the yard.” (measured in units: in., cm., ft., yds., mm., etc…) How do we solve for perimeter? Add all sides together. Example: 5 in. 1.How do I find the perimeter of this figure? 2.Add 5+5+5+5+5. 3.What is the perimeter? 25in.

4 1.2.3. 4.5. 2 ft. 3 ft. 6 cm 4 cm 5 in 3 in 7 ft 5 ft 9 ft 12 yds. 48 yds. 30 ft. 7 ft. 20 cm. 16 in

5 Area is the “grass in the yard.” (measured in units squared/ units²: in², cm², ft², yds², etc...) How do we solve for area? (Hint: it depends on the shape.) Square/Rectangle/Parallelogram: A=b·h Example: 3 cm27 cm² 9 cm 8 ft 5 ft 6 ft 40 ft²

6 Triangle: A= (b·h) 2 Example: 6 yds. 4 yds. 5 yds. 10 yds²

7 Trapezoid: A= (b1 + b2) ·h 2 Example: 9 cm. 7 cm. 12 cm. 10 cm. 80 cm.² base 1 base 2 height

8 7 ft. 5ft. 35 ft.² 9 cm. 8 cm.7 cm. 63 cm.² 8 in. 10 in. 40 in.² 8 yds. 12 yds. 6yds. 10 yds. 70 yds.²

9 Perimeter is the fence that goes all around, Area is the grass that’s on the playground, To get the perimeter you add up all the sides, To get the area you multiply. Area of a square, rectangle, and parallelogram: A= b·h Area of a triangle: A= b·h 2 Area of a trapezoid: A= (b1+b2)·h 2


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