Question

Find s.a of sphere r=0.1cm

Answer 1

r = 0.1cm

Surface Area of Sphere = 4πr^2

= 4×3.14×(0.1)^2

= 12.56 × 0.01

= 0.1256 cm^2

Thus, the correct answer is 0.1256 cm^2

Answer 2

Answer:

Surface area = 4$\pi$r²

                      = 4 * $\pi$ * 0.1 * 0.1

                      = 0.004 $\pi$ cm²

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