Question

please answer this question​

Answer 1

Answer:

3.5cm( ans )

Step-by-step explanation:

⇒Surface Area =154cm^2

∴4πx ^2 = 154

⇒x^2 = 154×7 / 4×22 = 49/9

⇒x= √49/4 x=3.5cm

make sure to match the answer

hope it helps you dear, study well.

Answer 2

Step-by-step explanation:

let the radius of sphere be r

surface area of sphere = 4 π (r^2)

154 = 4 × (22/7) × (r^2)

(154 × 7) / (4 × 22) = (r^2)

(49/4) = (r^2)

(7/2) = r

3.5 cm is the radius of the required sphere