Question

6 The image at the right is a scale drawing of aparking lot. The length of each square on thegrid represents 0.5 cm. The actual parking lothas a perimeter of 84 m. Draw another scaledrawing of the parking lot using a scale from theparking lot to the drawing of 2 m to 1 cm. Justifywhy your drawing is accurate.

Answer 1

Explanation:

We are told that on the grid

1 unit = 0.5 cm

and that actually, the perimeter of the parking lot is 84 cm.

Now on the drawing, the perimeter of the parking lot is

14 lines x 0.5 cm = 7 cm

This tells us that on the grid

7 cm = 84 m

which tells us that on the grid 1 cm is

1 cm = 84 m / 7 cm = 12 m

Therefore, the actual measurements of our parking lots are given by the following sketch.