Perimeter of Rectangles

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Presentation transcript:

Perimeter of Rectangles Shape, Space and Measure 2 Perimeter of Rectangles Perimeter is the length of the boundary of the shape perimeter Perimeter of the blue shape = 22 cm CyberDesign.co.uk 2005

The perimeter of any 2-D shape is the total distance around the shape Shape, Space and Measure 1 Perimeter of 2-D shapes The perimeter of any 2-D shape is the total distance around the shape 1 1 5 2 6 6 3 3 5 2 2 5 7 Perimeter = 5+3+5+3 Perimeter = 16 cm Perimeter = 6+7+6 Perimeter = 19 cm Perimeter = 26 cm end next CyberDesign.co.uk 2005

Area of Rectangles AREA Area is the space inside the shape Area Shape, Space and Measure 2 Area of Rectangles Area is the space inside the shape Area AREA = 1 cm2 Area of red shape = 28 cm2 CyberDesign.co.uk 2005

Area of a rectangle Area : A = L W Width Length Shape, Space and Measure 2 Area of a rectangle Area : A = L W Width Length CyberDesign.co.uk 2005

Area of a triangle Area : A = ½ B H Height Area : A = L W Width Length Shape, Space and Measure 2 Area of a triangle Area : A = ½ B H Height Area : A = L W Width Length Base CyberDesign.co.uk 2005

Area of a rectangle Area : A = L W Width Length Shape, Space and Measure 2 Area of a rectangle Area : A = L W Width Length CyberDesign.co.uk 2005

Area of a parallelogram Shape, Space and Measure 2 Area of a parallelogram Area : A = B H Height Width Base Length CyberDesign.co.uk 2005

Area of a trapezium a + b h b + a Shape, Space and Measure 2 Area of a trapezium a + b h b + a Area of a trapezium: A = ½ (a + b) x h Total area of both shapes: A = (a + b) x h CyberDesign.co.uk 2005