stuck on volume please help

[Bouncing]

I cannot do this first question as you saw i got wrong, please help with both of them

http://j.imagehost.org/view/0613/Picture_54

[Bun]

cba with the formulae at this time but work out the volume of the cylinder and the cuboid. then take away a quarter away from the cylinder and add the new value (3/4 of the cylinder) to the cuboid. i think that's it anyway, my head is scrambled.

[DieselShaq]

Hints:
1. Volume of cuboid = base * height * width
2. Volume of cylinder = pi * radius * radius * height
3. You need the volume of a quarter of the cylinder

[AlexOC]

oh my god!

is that mymaths? we use that

[ecstasy]

(pi*14*14) /4 *3 (thats the 3/4 of the circle)

+

28 * 28 (thats the square)

answer * 41

bingo