Question

Split the following shapes into rectangles and find their areas. (The measures are given in centimetres)

Answer 1

(a) The given figure can be broken into rectangles as follows.

Area of 1^st rectangle = 12 × 2 = 24 cm²

Area of 2^nd rectangle = 8 × 2 = 16 cm²

Total area of the complete figure = 24 + 16 = 40 cm²

(b) The given figure can be broken into rectangles as follows.

Area of 1^st rectangle = 21 × 7 = 147 cm²

Area of 2^nd square = 7 × 7 = 49 cm²

Area of 3^rd square = 7 × 7 = 49 cm²

Total area of the complete figure = 147 + 49 + 49 = 245 cm²

(c) The given figure can be broken into rectangles as follows.

Area of 1^st rectangle = 5 × 1 = 5 cm²

Area of 2^nd rectangle = 4 × 1 = 4 cm²

Total area of the complete figure = 5 + 4 = 9 cm²