Posted by **mohan** on Tuesday, October 27, 2009 at 9:18am.

how do i change 30.50 in^2 to mm^2

my conversion sheet says its

1 inch =25.4mm

- math -
**mohan**, Tuesday, October 27, 2009 at 9:22am
So i did the following:

30.50in^2 * 25.4mm =774.7mm

but i dont know if i should square it or not?.. im confused please help

- math -
**jim**, Tuesday, October 27, 2009 at 9:27am
1 inch =25.4mm. That is right.

But when squaring, you have to square both the units _and_ the numbers, so

1 inch = 25.4 mm

(1 inch)^ = (25.4mm)^2

(1^2) inch^2 = (25.4^2) mm^2

1 in^2 = 645.16 mm^2

Or think of it this way:

Draw a 3-inch line. That's 3 inches.

Now make a square from it with 3 inches on each side. How many square inches is that?

## Answer this Question

## Related Questions

- Math - Jasmine is manufacturing engineer who is trying to find out if she can ...
- volume - Jasmine is a manufacturing engineer who is trying to find out if she ...
- math - label its dimensions after you rule a square the same area as this ...
- math - How can you draw a line that is 5 inches long using only one sheet of 8 1...
- Math - Find the diameter of a circle with a circumfrence of 50 mm. Round your ...
- Math - Jack needs a piece of wood at least 13/16 inch long for some detail work ...
- Algebra - A box with a lid is to be cut out of a 12 inch by 24 inch sheet of ...
- Math - From an 8 inch by 10 inch rectangular sheet of paper, squares of equal ...
- math - mr. m has an 8 inch by 11 inch sheet of paper. He created a box by ...
- Math - mr. m has an 8 inch by 11 inch sheet of paper. He created a box by ...

More Related Questions