Question

Curved surface area of sphere 616 cm find its radius

Answer 1

Hey mate!

Here is your answer > >

Curved surface area of sphere=616 cm^2

Radius of sphere=?

We know that

C.S.A of sphere=3 $\pi$r^2

=> 616=3×22/7×r^2

r^2=65.333

r=8 cm(approx.)

Hope it helps!

Thankyou ☆ ☆

Answer 2

Answer:

Solution :

Let the radius of the sphere = r cm

Surface area of the sphere = 616 cm²

4πr² = 616 cm²

=> 4 × ( 22/7 ) r² = 616

=> r² = ( 616 × 7 )/( 22 × 4 )

=> r² = ( 7 × 7 )

r = √ 7 ×✓7

r = 7 cm

Therefore ,

Radius of the Sphere = r = 7 cm

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