Math Is Fun Forum
Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °
You are not logged in.
- Topics: Active | Unanswered
Pages: 1
#1 2006-11-01 07:58:33
- Dharshi
- Member
- Registered: 2006-10-31
- Posts: 56
What is the volume?
Eight equal cubes of side 5cm each joined end to end.Find the volume and surface area of the resulting cuboid.
Offline
#2 2006-11-01 08:41:36
- Devantè
- Real Member
- Registered: 2006-07-14
- Posts: 6,400
Re: What is the volume?
Volume:
5cm x 8cm = 40cm (length)
This tells us that the new measures, in L, W, H is 40, 40, 8 (cm).
You can work from there.
Offline
#3 2006-11-01 09:09:25
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: What is the volume?
Only the length gets changed, the other dimensions remain the same. So the cuboid would have measurements of 40, 5 and 5.
To find the surface area, you need to find the area of each of the 6 faces of the cuboid. It has 4 big rectangles and 2 small squares.
Why did the vector cross the road?
It wanted to be normal.
Offline
Pages: 1