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