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Margaret [11]
3 years ago
5

The radius of the large sphere is twicethe radius of the small sphere.​

Mathematics
1 answer:
ra1l [238]3 years ago
8 0

Answer:

40 cm²

Step-by-step explanation:

Given the ratio of radii = a : b , then

ratio of areas = a² : b²

Here ratio of radii = 1 : 2

ratio of areas = 1² : 2² = 1 : 4

Thus

surface area of large sphere = 4 × 10 = 40 cm²

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