(a) The given figure can be broken into rectangles as follows.
Area of 1st rectangle = 12 × 2 = 24 cm
Area of 2nd rectangle = 8 × 2 = 16 cm
Total area of the complete figure = 24 + 16 = 40 cm
(b) The given figure can be broken into rectangles as follows.
Area of 1st rectangle = 21 × 7 = 147 cm
Area of 2nd square = 7 × 7 = 49 cm
Area of 3rd square = 7 × 7 = 49 cm
Total area of the complete figure = 147 + 49 + 49
= 245 cm
(c) The given figure can be broken into rectangles as follows:
Area of 1st rectangle = 5 × 1 = 5 cm
Area of 2nd rectangle = 4 × 1 = 4 cm
Total area of the complete figure = 5 + 4 = 9 cm
