Question

tell this one please........ ​

Answer 1

Answer:

Step-by-step explanation:

volume is 448∧ height = 7cm

volume = ∧r²h

⇒ 448∧ = ∧r²h

⇒448∧ = ∧r²*7

⇒448/7 = r²

⇒r =√64=8 cm

now curved surface area = 2∧rh

= 2*22/7*8*7

= 352 cm²

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Answer 2

Vol 448πcm2

H is 7cm

Vol= πrrh

=> 448 = rr(7)

R= 8cm ( not -8)

CSA= 2πrh

= 112π

TSA= 2πr(r+h)

= 16(56)π solve the rest