The sum of all the edges of the cube is 69 cm, find the length of the edge of the cube.
| August 17, 2021 | education
The cube has 12 edges (a square on top of 4 edges, a square on the bottom of 4 edges and an edge for each connection of 4 vertices of the square – 4 edges) So we got 12 edges, so the length of one edge we find by dividing the sum of all edges by their number:
69/12 = 5 9/12 = 5 3/4 = 5.75 cm
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