Question

find the radius of sphere whose surface area is 314 square CM( π=3.14)​

Answer 1

Answer:

15.7 cm

Step-by-step explanation:

Area of sphere =314 sq.cm

=Area of sphere=4πr^2

                    314=4 x 3.14 x R^2

                     314/4 x 3.14=R^2

                    R^2=246.49

                     R=√(246.49)

                     R=15.7 cm

Answer 2

The radius of the given sphere is 25 cm

Step-by-step explanation:

Total surface area of sphere = $4 \pi r^2$

We are given that surface area is 314 square CM

So, $4 \pi r = 314$

$4 \times 3.14 \times r = 314$

$r = \frac{314}{4 \times 3.14}$

r = 25 cm

Hence The radius of the given sphere is 25 cm

#Learn more:

If surface area of sphere is 2826 cm square then find its volume

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