Question

3 part question helppppp

Answer 1

Part I ; 2(pi)(5)(8) =?
Remember, the curved surface area of an object is (perimeter of base area)(length)

Part II: 2(pi)(5)^2 = ?

Part III: 2(pi)(5)(8) + 2(pi)(5)^2 = ?

Answer 2

#1-251.2
#2- 157
#3- 408.2

Answer 3

@pythagoras123 right?

Answer 4

Correct

Answer 5

square units?

Answer 6

yes, all surface areas are to be left in square units, since area is a 2-dimensional quantity.

Answer 7

Volume on the other hand is a 3-dimensional quantity so to find volume you have to multiply a 2-dimensional quantity (usually base area) by a 1-dimensional one (usually length). This only applies for regular solids i.e. the cross-sectional area throughout is the same.

Answer 8

And volume would be cubed right?

Answer 9

Thank you soo soo much . I appreciate your help.