Presentation on theme: "Perimeter and Area of Rectangles, Squares, and Triangles"— Presentation transcript:
1 Perimeter and Area of Rectangles, Squares, and Triangles
2 (Vocab section of your binders!!) Perimeter and AreaVocabulary(Vocab section of your binders!!)Perimeter ~ The distance around a polygon, or shape.Area ~ The number of square units needed to cover a given surface. We measure area in square units.
3 To find the perimeter, add up all of the sides. 2 cm3 cm4 cm3 cm3 cm5 cm8 cm8 cm3 cm3 cm5 cm3 cm3 cm4 cm3 cm3 cm2 cm
4 PerimeterEven if the value of the side is not given, use what you know to solve for the perimeter.5 cm10 mm4 mm4 mm
5 Area of Rectangles Area = length • width A = l • w Use this formula to find the area of a rectangle.2 m7 m6 m1 m3 m5 m
6 Area of Triangles Area = ½ • base • height A=1/2bh 2.9 cm 13.2 km
7 Area of Parallelograms Area = base • height A = bh6.2 m9 m4.7 m7 m