The length of the rectangle is 18cm and the width is 4cm. Find the perimeter
| April 10, 2021 | education
The length of the rectangle is 18cm and the width is 4cm. Find the perimeter of the square whose area is 2 times less than the area of the rectangle.
First, we find the area of the rectangle, then we find the area of the square and its side. And then we find the perimeter of the square.
1) 18 * 4 = 72cm2 is the area of a rectangle.
2) 72: 2 = 36cm2 is the area of a square.
3) 6 * 6 = 36cm2 – the side of the square is 6cm.
4) 6 * 4 = 24 cm – the perimeter of the square.
Answer: 24cm.
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