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Lesson 2: Scale drawings

# Solving a scale drawing word problem

See how we solve a word problem by using a scale drawing and finding the scale factor. Created by Sal Khan.

## Want to join the conversation?

• at , he says the dimensions is 40x40, presuming it's a square, but it says rectangular up above. I know a square is a rectangle, but how could he be sure those were the dimensions?
• He could do the reverse operation to check his work
• is it just me im having a very hard time with these types of probs
• Sal uses too much vocab! What are dimensions! SAL IS TOO SMART! IM NOT!
• Dimension is the length,width,height,or depth of something.
• In the question it says rectangle not square.
• He never says what would happen if you were trying to do an odd number!
It woud be a little bit ore complacated but he should at least talk about it.
• Is there any way to do this without doing all the scratchpad work?
• It is all right to work with a pencil and paper but if you have the brain power, it is quite easy to do it in your brain. just find out the square root as shown in the video and work from there. It is always perfectly fine to use a pencil and paper and it is necesary alot of the time but on easier problems all you would need to do is jot down a few numbers!