Perimeter of Square
Perimeter of Square
A square is a quadrilateral in which it has 4 equal sides and all the interior angles of a square are right angles. It is a closed two-dimensional plane figure.
Perimeter of square = sum of length of 4 sides = side + side + side + side = 4 × side
If a square has a length of the side 'a' units, then the perimeter of the square = 4a units
Illustration: Find the perimeter of a square of side 5m.
Solution: Given: Side of square = 5m
Hence, Perimeter = 4 X 5 = 20m
Illustration: The perimeter of a square is 52 m. Find the side of the square.
Solution: Perimeter of square = 52 m. But perimeter of square = 4 × side
Therefore, 4 × side = 52 m
Therefore,
Illustration: Find the perimeter of a square of side
.Solution: Given: Side of square =
Hence, Perimeter =
Illustration: Find the cost of fencing a square park of side 250 m at the rate of Rs. 20 per meter.
Solution: Given: Side of the square = 250 m
To fence a square park, we need to find the perimeter of the square park.
Hence perimeter of the square park = side
= 250
= 1000 m
As the cost of fencing 1 meter of square park = Rs. 20
Hence, the cost of fencing 1000 meters of square park = Rs. 20 1000
=
Calculate the side of a square whose perimeter is 40 cm. | |||
| Right Option : D | |||
| View Explanation | |||
A square lawn has a side that is 18 m long. How much wire will be needed to fence the lawn ? Also , find the cost of fencing at the rate of Rs. 2 per metre | |||
| Right Option : A | |||
| View Explanation | |||
The perimeter of a square lawn is 72 m . Find the length of the side of the square lawn | |||
| Right Option : A | |||
| View Explanation | |||
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