Step-by-step explanation:
Given

So

Now

So

Hope it will help :)❤
We see that they are made up of identical squares, meaning that each side of each square is the same length. There are 12 square sides that make up the perimeter of A, so we can do 72/12 which is 6. We see there are ten total square lengths on the perimeter of b, so we can do 6 times 10 which is 60 cm. That’s your perimeter.
The scale on the map is 1 in = 13.5 units
135/10 = 13.5
False, a negetive and negetinve both equal positive