# Thread: Math Questions...NOT DRAWN TO SCALE

1. ## Math Questions...NOT DRAWN TO SCALE

I often see the words NOT DRAWN TO SCALE referring to math questions.

What exactly does that mean?

Is there a much easier way of saying the same thing?

Thanks

2. Hello, magentarita!

I often see the words not drawn to scale.
What exactly does that mean?

Suppose they gave us $\displaystyle \Delta ABC$ with: .$\displaystyle AB = 10,\;BC = 12,\;AC = 5$

And suppose they supplied this diagram:
Code:
                  A
*
*  *
10 *     * 5
*        *
*           *
*              *
B *  *  *  *  *  *  * C
12

It is only a rough sketch . . . It is not "drawn to scale."

$\displaystyle AB = 10$ does not look like it is twice $\displaystyle AC = 5$, does it?

It gives an idea of what the triangle looks like.
. .
$\displaystyle AC$ is the shortest side and $\displaystyle BC$ is the longest side.

But I wouldn't guess the size of the angles from that diagram.
. . It looks like $\displaystyle \angle A$ is acute, but actually it's about 101°.

3. ## I see......

Originally Posted by Soroban
Hello, magentarita!

Suppose they gave us $\displaystyle \Delta ABC$ with: .$\displaystyle AB = 10,\;BC = 12,\;AC = 5$

And suppose they supplied this diagram:
Code:
                  A
*
*  *
10 *     * 5
*        *
*           *
*              *
B *  *  *  *  *  *  * C
12
It is only a rough sketch . . . It is not "drawn to scale."

$\displaystyle AB = 10$ does not look like it is twice $\displaystyle AC = 5$, does it?

It gives an idea of what the triangle looks like.
. . $\displaystyle AC$ is the shortest side and $\displaystyle BC$ is the longest side.

But I wouldn't guess the size of the angles from that diagram.
. . It looks like $\displaystyle \angle A$ is acute, but actually it's about 101°.
I see what you mean.