2 dimensions square units Objectives: Deduce and use formula for the perimeter and area of a rectangle.Calculate the perimeter and area of shapes made from rectangles.Vocabulary:dimensionssquare units
3 The area of this rectangle is 12 cm². What are the possible dimensions – length and width of this rectangle?Which of the rectangles you have found has the largest perimeter?Possible answers1 x 12 cm2 x 6 cm3 x 4 cm(any other answers would involve lengths with decimals).Largest perimeter x 12 cm rectangle with a perimeter of 26cm.Even greater perimeters are achieved if decimal lengths are acceptable!!!( Example x 120cm perimeter is 240.2cm.)
4 This rectangle has a perimeter of 12 cm. Find as many different rectangles with a perimeter of 12cm.Which of the rectangles has the largest area?Possible answers: 4 x 2 cm, 3 x 3 cm, 1 x 5 cmAny other answers would include decimal lengths.Largest area: 3 x 3 cm = 9cm²
5 - + 8cm 6cm 3cm 5cm Work out the area and perimeter of the shape. 8cm BArea is:+Perimeter: cm8cm6cmArea is:-Perimeter:Why?3cm
6 Find the area and perimeter of each of the shapes below: (all measurements given in cms) 9W/S 9.1B833854432741055247
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