REVISED QUESTION, CAN YOU PLEASE HELP ME QUICK

Question

PLEASE HELP ME. 7TH GRADER GOING TO 8TH

 

a hot cocoa container is made out of aluminum and wrapped with a paper label. the top  of the container is open and is sealed with a plastic lids. use 3.14 for and around to the nearest hundreth when necessary.

top of can from end to end is       13 cm 

down the side is 24.cm

how much plastic is needed for the plastic top? Write a formula and show your work

how much aluminum is needed for the can? Write a formula and show your work

 

please note: its a can, like a container or shape of a can of soda.  the top is 13cm across the top of the can/container  and 24.5 from top to bottom height.

Answer 1

the can consists of a rectangle(lateral side) and a circle(the bottom), both made of aluminum, and one circle on top, made of plastic.

Area of rectangle: Circumference of the circle x hight of the can = piD x H= 3.14 x 13 x 24=979.68 cm^2

Area of the bottom=piR^2= 3.14 x 6.5^2= 132.665 cm^2 (the same area for the plastic top)

The total amount of aluminum : 970.68 + 132.665=1103.35 cm^2