Question

Please answer this Math question asap!! 25 points and brainliest!!

Answer 1

Answer:

surface area of cylinder =2×22/7×r(h+r)

2×22/7×19(21+19)

44/7×19×40

33440/7

4777.14286

Answer 2

Answer:

hey... frend your ans.. is here

Step-by-step explanation:

the d=38in. of a cy.

and h=21in.

to find radius =d/2=38/2=17

the r=17in.

and h = 21in.

s.a. if a cy. 2×π×r×h + 2×π×r²

2×22/7×17×21 + 2×22/7×17×17

2,244 + 12716/7

2,244 + 1816.571

4,060.571in²

hope it use full for ur study

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