Question

the grid you see below is in the shape of a rectangle. what is the area, in square units, of the shaded part?
answer attempt 1 out of 2
$a = \square$ units$^2$
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Explanation:

Step1: Count shaded top row squares

Count = 8

Step2: Count shaded bottom row squares

Count = 3

Step3: Sum the two counts

Total = $8 + 3$

Answer:

11 units²