The edge length of a cube is 12 cm. If the edge length is increased by 2 times, the sum of its edge lengths will be increased by () times, its volume will be increased by () times, and its surface area will be increased by () times

The edge length of a cube is 12 cm. If the edge length is increased by 2 times, the sum of its edge lengths will be increased by () times, its volume will be increased by () times, and its surface area will be increased by () times

If the edge length of a cube is 2 times larger, the sum of its edge lengths will be (2) times larger, its volume will be (8) times larger, and its surface area will be (4) times larger, because if the edge length is a, the sum of its edge lengths is 12a. If the edge length is 2 times larger, the sum of its edge lengths will be 2A × 12 = 24a, the volume will be a & sup3;, and if the edge length is 2 times larger, the volume will be (2a) & sup3; = 8A

Now there is a 150cm long iron wire, which is welded into a cube frame. There is 6cm iron wire left. How long is the edge of the cube frame?

150-6=144 144/12=12cm

"Now there is a 150cm long iron wire, which is welded into a cube frame. There is 6cm iron wire left. What is the edge length of the cube frame

150-6 = L44 144 divided by 12 = 12cm