Answer:
Yes
Step-by-step explanation:
First we have to get the area of the square when the length is 12cm. We know a square has equal sides so we can simply do l * l to get the area.
12 * 12 = 144.
Let's compare this to 170.
170 > 144, so yes we will have enough to make a 12 by 12 handkerchief :)