THE CORRECT ANSWER IS (D). POINTS (21,21) AND (2,21) CONNECT TO FO...
32. The correct answer is (D). Points (21,21) and (2,21) connect to form a horizontal
line segment of length 3. Similarly, points (2,3) and (25,3) connect to form a horizontal
line segment of length 7. Since the two segments are parallel, the resulting
quadrilateral is a trapezoid. The vertical distance between the two parallel segments
is 4. Apply the formula for a trapezoid’s area (AB and CD represent the two parallel
segments, and h is the quadrilateral’s height):
A
5
AB
1
CD
2
3
h
A
5
3
1
7
2
3
4
A
5
20
You can also plot the quadrilateral on the grid, divide it into a right isosceles triangle
and one rectangle, then calculate the area of each one. (The rectangle’s area is 12, and
the triangle’s area is 8.)