Find area and Perimeter of the square whose sides are (i) 4cm
(ii) 21cm (iii) 14 cm (iv) 11 m
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Answer :
- Area = 16cm , Perimeter = 16cm
- Area = 441cm² , Perimeter = 84cm
- Area = 196cm² , Perimeter = 56cm
- Area = 121m² , Perimeter = 44m
Given :
- 4cm
- 21cm
- 14cm
- 11m
To find :
- Area and perimeter of square
Solution :
(1) 4cm
As we know that
- Area of square = a²
》Area of square = a²
》Area of square = (4)²
》Area of square = 16cm
As we know that,
- Perimeter of square = 4a
》Perimeter of square = 4a
》Perimeter of square = 4 × 4
》Perimeter of square = 16cm
(2) 21cm
- Area of square = a²
》Area of square = a²
》Area of square = (21)²
》Area of square = 441cm²
As we know that,
- Perimeter of square = 4a
》Perimeter of square = 4a
》Perimeter of square = 4 × 21
》Perimeter of square = 84cm
(3) 14cm
As we know that,
- Area of square = a²
》Area of square = a²
》Area of square = (14)²
》Area of square = 196cm²
As we know that
- Perimeter of square = 4a
》Perimeter of square = 4a
》Perimeter of square = 4 × 14
》Perimeter of square = 56cm
(4) 11m
As we know that,
- Area of square = a²
》Area of square = a²
》Area of square = (11)²
》Area of square = 121 m²
- Perimeter of square = 4a
》Perimeter of square = 4a
》Perimeter of square = 4 × 11
》Perimeter of square = 44m
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