Question

Volume of a soup can.
d=5.3cm
h=17.7cm

Answer 1

= area of circle times the height
area of circle = pi squared times half the diameter

Answer 2

The volume of the soup inside will of course be a little less. ;-)

Answer 3

I am still confused how to use that formula.

Answer 4

Volume of can = area of circle * height of the can

Answer 5

here can is a cylinder. Cylinder of like a pile of circles placed one upon other! Hope it makes some sense

Answer 6

I used that formula but getting a different answer from what I have in the book.

Answer 7

to calculate area of circle what formula are u using? pi*d square/4 ?

Answer 8

nope

Answer 9

use that formula.. when radius is given it is pi*r square. since r = d/2 we use that

Answer 10

if d=5.3cm, then radius = 2.65cm
square the radius = 7.0225cm^2
multiply by pi = 22.061834384625cm^2 (used 3.14159265 for pi)
multiply by height, h=17.7cm,
--> 390.4944686... cm^3 which you can round to 390 or 390.5 since that is the limit of precision of your input values.

Answer 11

General formula is A=pi*r^2
Make sure to use proper order of operations and don't round off any of your intermediate values. Only ever round off final answers.

Answer 12

Oops, meant to also include general formula for cylinder volume, V=pi*r^2*h Remember to square the radius first and then multiply by pi and by the height.

Answer 13

Wait there is no radius Cliffsedge its only diameter and height provided.

Answer 14

Use the definitions from geometry: radius = half of diameter | diameter = twice the radius.
If you don't want to use that substitution then use the formula provided by srinu7j:
Acircle = pi*d^2/4
Vcylinder = Acircle*height

Answer 15

Got it!

Answer 16

Thank You! Cliffsedge and srinu7j