Completely stumped if anyone can explain that would be awesome.

Question

Adam has coconut milk. the coconut milk is in a can but he doesn't know how much the can holds. The can is 12cm high and the diameter is 8cm using the formula V=.π r ²h, work out how much coconut milk is in the can. Use 3 as a value for pie

Answer 1

Given the volume of a cylinder V = pi(r²)h we simply plug in the numbers

 

The radius is half the diameter so r = 4cm

the height h is given as 12 cm

V = 3(4²)(12) = 3(16)(12) = 576 cm³

 

Note:  Generally we would use 3.14 as the rounded value of pi.