#### Answer

No, because there is an intersection region is present so we need to eliminate the intersection region.

#### Work Step by Step

Given the area of square is 12 and the area of circle is 30.
Does the area of the entire shaded region equal 42?
No, the area of the entire shaded region is not equal to 42 because there is a common or intersection region is present.
To find the entire shaded region we need to eliminate the intersection region.