3. a cylindrical shaped tumbler has a radius of 5 cm and a height of 25 cm.find
the surface area of the tumbler?
4. a paper parly hat. has a slant height of 18 centimeters and adiameter oh 20
centimeters.how many square inches of colored paper would be needed to creat this hat?
pls anwer i need this for tommorow

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Answered

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TechnothePig01viz TechnothePig01viz · Answer 1

Answer:

3.)

SA = 2πrh + 2πr²

SA = 2(3.14 × 5 × 25) + 2(3.14 × 5²)

SA = 2(392.5) + 2(78.5)

SA = 785 + 157

SA = 942 cm²

4.)

SA = πrh + πr²

SA = (3.14 × 10 ×18) + (3.14 × 10²)

SA = 565.2 + 314

SA = 879.2 cm²

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