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After a 150cm long iron wire is used to make a cube frame, 6cm iron wire is left. How long is the edge of the cube?
150-6=144
144/12=12cm
The edge length of this cube is 12 cm
With a 96cm long wire welded into a cube frame, its edge length is how many centimeters?
There are 12 edges of a cube, all of which are equal. The 96cm wire in the question is the sum of the edges of a cube
Cube edge length = sum of cube edge length △ 12
96 △ 12 = 8 cm
A 24 meter long iron wire is used to encircle a cube frame. How many square meters is the surface area of the cube?
The cube has 12 sides, 24 / 12 = 2, and the side length is 2m
Surface area = 2 * 2 * 6 = 24 square meters
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