16 cm
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The perimeter of a rectangle is calculated by adding up the lengths of all four sides. In this case, the rectangle has two sides of length 6cm and two sides of length 4cm. Therefore, the perimeter would be 6cm + 6cm + 4cm + 4cm = 20cm.
If it is an equilateral triangle with 3 equal sides of 4m then its perimeter is 12cm
It is an equilateral triangle
To calculate the volume of a box, you multiply its length, width, and height. In this case, the box is 10cm x 6cm x 4cm. So, the volume would be 10cm x 6cm x 4cm = 240 cubic centimeters.
To calculate the volume, multiply the length x width x height. volume = 12cm x 6cm x 4cm = 288cm3