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PIT_PIT [208]
3 years ago
10

Pls help i give u brainliest​

Mathematics
2 answers:
GREYUIT [131]3 years ago
4 0

Answer:

The answer is 324π m².

Step-by-step explanation:

Given that the surface area of sphere formula is S.A = 4×π×r² where r is radius. The diameter of sphere is 18m so you have to divide it by 2 to find it's radius :

radius = diameter \div 2

radius = 18 \div 2

radius = 9m

Then substitute into the formula :

s.a = 4 \times \pi \times  {r}^{2}

let \: r = 9

s.a = 4 \times \pi \times  {9}^{2}

s.a = 4 \times \pi \times 81

s.a = 324\pi {m}^{2}

Sergio [31]3 years ago
4 0

Answer:

The answer is 324π m².

Step-by-step explanation:

Given that the surface area of sphere formula is S.A = 4×π×r² where r is radius. The diameter of sphere is 18m so you have to divide it by 2 to find it's radius

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