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Aleks [24]
3 years ago
7

Determine to the nearest and tenth the surface area of a tin can with a radius of 8 centimeters and a height of 16 centimeters

Mathematics
2 answers:
trapecia [35]3 years ago
6 0

Answer:

1206 square centimeters

Step-by-step explanation:

Hello, I can help you with that

a tin is a cylinder,a cylinder is formed by 2 circles anda 1 rectangle

let's remember

Area of the circle

A=\pi *radius^{2}

Area of the rectangle

A_{r}=length *wide\\

the length of the rectangle is the height of the tin  (16 cm)

and the wide is equal to the perimeter of the circle

perimeter of the circle(P)

P=2*\pi *radius

so, the area of the rectangle is

A_{r}=length *wide\\\\A_{r}=heigth *2*\pi *radius

Step one

find the total area:

the total area is equal to 2 circles + 1 rectangle

A_{total}=(2* \pi *radius^{2} )+(height*2*\pi *radius)

Step two

put the values into the equation

height = 16 cm

radius= 8 cm

A_{total}=(2* \pi *radius^{2} )+(height*2*\pi *radius)\\A_{total}=(2* \pi  )+(16*2*\pi *8)\\A_{total}=(128* \pi  )+(256*\pi )\\A_{total}= 378 \pi\\ A_{total}=1206.37

so, the total area is 1206.37 square centimeters

I hope it helps, have a great day.

Dennis_Churaev [7]3 years ago
3 0

Answer:

The surface area of the tin can is 1206.37cm²

Step-by-step explanation:

The tin can is cylindrical in nature and the surface area of a cylinder is expressed as;

S = 2πr(r+h)

r is the radius of the tin can

h is the height of the tin can

Given r = 8cm

h = 16cm

To get the surface area, we will substitute the given parameters into the formula to have;

S = 2π(8){8+16}

S = 16π×24

S = 1206.37cm²

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