Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 Re: Help Me ! » Area and Volume » 2009-06-10 01:26:39

volume is not defined for rectangles, squares, circles

So does a triangle have a volume? I guess no smile

#3 Re: Help Me ! » Area and Volume » 2009-06-10 01:00:38

Im actually required to search the volume for

1. square
2. rectangle
3. Triangle
4. circle

#4 Re: Help Me ! » Area and Volume » 2009-06-10 00:54:57

To find the volume for square do I use the cube formula which a x a x a?. Same to find the volume of rectangle do I use the rectangle prism formula which is L * W * H? Same goes for triangle and circle...

#5 Help Me ! » Area and Volume » 2009-06-10 00:43:59

solomon_13000
Replies: 11

1. Area of Rectangle = L * W
2. Area of Square = S * S
3. Area of Triangle = (B * H) / 2
4. Area of Circle = 3.142 * (r * r)

I would like to find out is the volume for

1. square = cube
2. rectangle = rectangle prism
3. Triangle = pyramid
4. circle = sphere

Thank You.

#6 Help Me ! » laws of boolean algebra » 2007-04-27 10:39:57

solomon_13000
Replies: 1

I tried to proof that (x.y) + (x~.z) + (x~.y.z~) = y + (x~.z)  but im getting an invalid answer:

(x.y) + (x~.z) + (x~.y.z~) = y + (x~.z)
(x.y) + (x~.y.z~) + (x~.z)
y(x+x~.z~) + (x~.z) Distributive law
y(1.z~) + (x~.z) Laws of exclude middle
y(z~) + (x~.z)

Is my steps correct?

Also I tried this:

(x.y.z) + (x~+z~) = (x.z) + (x~.z~)
y.(x.z) + (x~+z~)  Associative law
1.(x.z) + (x~+z~)  Identity law
(x.z) +  (x~+z~)

and I manage to get a valid answer.

Is my steps correct?

Regards.

Board footer

Powered by FluxBB