If a polyhedron is
7ft
3ft
5ft
What would be its surface area
To find the surface area of a polyhedron, we need to determine the area of each of its individual faces and then add them up.
For the given dimensions of the polyhedron:
- The 7 ft face would have an area of 7 ft * 3 ft = 21 square feet.
- The 3 ft face would have an area of 3 ft * 5 ft = 15 square feet.
- The 5 ft face would have an area of 5 ft * 7 ft = 35 square feet.
Adding up the areas of all three faces:
21 + 15 + 35 = 71 square feet
Therefore, the surface area of the polyhedron would be 71 square feet.