Here's the question you clicked on:
ammy1234
Brenda made two similar glass display boxes shaped like triangular prisms. The length of the sides of the base of the first display box is 4 feet, and the length of the sides of the base of the second display box is 8 feet. If the volume of the first display box is 42 ft3, what is the volume of the second display box?
4^2 sin(60) ---------- = base triangle area i believe 2
|dw:1329592783061:dw| base = sqrt(3) sqrt(3) * h = 42 h = 42/sqrt(3) , is that right?
336 ft3 672 ft3 1344 ft3 2688 ft3
then with any luck we will arrive at one of those choices :)
|dw:1329592905817:dw| 4*4 sin(60) ---------- = base area 2 4*4*sqrt(3) --------- = 4sqrt(3) for the base area 4 4sqrt(3) * h = 42 h = 21/2sqrt(3)
if we double this to be similar to the other one in measure we get a height of 21/sqrt(3)
base area of other one is: 8*8 sin(60) 8*8*sqrt(3) ---------- = ---------- = 16 sqrt(3) 2 4 16sqrt(3) * 21/sqrt(3) = 16*21 ... 210 +126 = 336 ... maybe?
yay!! its an option, if its right or not tho ... lol
good enough for me haha thanks
yw, i cant see any fauxpauxes in my work so it might be good; at least an 83% chance of success lol