A rectangular pit 17m long and 15m wide must be enclosed with a construction fence 3m
| May 23, 2021 | education
A rectangular pit 17m long and 15m wide must be enclosed with a construction fence 3m away from the pit. Find the length of the fence.
1. The fence should be at a distance of 3 m from each side, then we get a rectangle with sides:
17 + 3 + 3 = 23 m;
15 + 3 + 3 = 21 m.
2. To find the length of the fence, you need to find the perimeter of the rectangle, which turned out:
23 + 23 + 21 + 21 = 46 + 42 = 88 m.
Answer: the length of the fence is 88 m.
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