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


The area of the above given figure can be calculated as:

(a) We know that,


Area of rectangle = Length × Breadth


Therefore,


Atrea of 1st rectangle = 12 × 2 = 24 cm2


Also,


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


Thereore,


Total area= 24 + 16 cm2


= 40 cm2


(b) The area of the above given figure can be calculated as:


We know that,


Area of rectangle = Length × Breadth


Also,


Area of square = (Side)2


Therefore,


Area of 1st rectangle = 21 × 7


= 147 cm2


Area of 2nd square = 7 × 7


= 49 cm2


Also,


Area of 3rd square = 7 × 7


= 49 cm2


Therefore,


Total Area = 147 + 49 + 49


= 245 cm2


(d) The area of the above given figure can be calculated as:


We know that,


Area of rectangle = Length × Breadth


Therefore,


Area of 1st recatngle = 5 × 1 = 5 cm2


Also,


Area of 2nd rectangle = 4 × 1 = 4 cm2


Therefore,


Total area = 5 + 4 = 9 cm2


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