Question

plz give answer 10 points​

Answer 1

Answer:

csa=2πrh

tsa=2πr(h+r)

Step-by-step explanation:

inner csa=2π4*77=1935.22cm²

outer csa=2π4.4*77=2128.74cm²

tsa=2π4.4(77+4.4)=2250.38cm²

Answer 2

hi

I hope it will help you

this is proved

please mark it a brain list answer
have a nice day :)