Question

If each square of the grid below is 0.5 cm by 0.5 cm, how many square centimeters are in the area of the blue figure? (The perimeter is 21.)

Answer 1

8.5

Explanation:

There are 34 squares. Each square is 0.5 cm by 0.5 cm, so each square has an area of 0.25 cm^2.

0.25 x 34 = 8.5.