Final answer:
The area of triangle KLN is half of the parallelogram KLMN's area, which is 17.5 square inches.
Step-by-step explanation:
If the area of the parallelogram KLMN is 35 square inches, the area of triangle KLN will be exactly half of that, since a diagonal of a parallelogram divides it into two congruent triangles. Therefore, to find the area of triangle KLN, we simply divide the area of the parallelogram by 2:
Area of triangle KLN = 35 square inches ÷ 2 = 17.5 square inches.
The correct answer is B) 17.5 square inches.