Question

A swimming of 25 meter by 10 meter has a concreate border. Find the perimeter of outside the concrete border if it is 5 meter wide at each of the sides and 2.5 meter at the top and bottom

Answer 1

Answer:

The concrete border's perimeter is 85 meter.

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Step-by-step explanation:

Answer 2

Given

The length of the swimming pool is 25 m and its breadth is 10m.

Now the pool has a concrete border of length 5m at each side and of length 2.5m at the top and bottom.

Now, the length, therefore, becomes (25+5+5)m = 35m for one side and there are two such sides.

Therefore, total length = 35m*2 = 70m

Similarly, the breadth becomes (10+2.5+2.5)m = 15m for one side and there are two such sides.

Therefore, total breadth = 15m*2 = 30m

Hence, perimeter = (length+breadth) = (70+30)m = 100m