Find the surface of the cube with the following edges:
1. 5cm
2. 10cm
3. 1.2cm
4. 12.5 in
5. 210 mm
1. 5cm
2. 10cm
3. 1.2cm
4. 12.5 in
5. 210 mm
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Answer:
1. 150
2. 600
3. 8.64
4. 937.5
5. 2.6x10^5
Step-by-step explanation:
The formula for the surface are of a cube is:
sample solution:
Answer:
1. surface area = 150
edge = 5
A = 6a² = 6 · 5² = 150
2. surface area = 600
edge = 10
A = 6a² = 6 · 10² = 600
3. surface area = 8.64
edge = 1.2
A = 6a² = 6 · 1.2² = 8.64
4. surface area = 937.5
edge = 12.5
A = 6a² = 6 · 12.5² = 937.5
5. surface area = 2.65 × 10^5
edge = 210
A = 6a² = 6 · 210² = 2.646 × 10^5