Question: a sixth grade teacher asked her students to draw rectangles with positive integer length and a perimeter of 42 . the difference between the largest and smallest possible ares of the rectangles that the students could have come up with is ?
A) 50 sq units
B) 60 sq units
C) 70 sq units
D) 80 sq units
E) 90 sq units
Correct answer: E
Grade: 7 | Topic: Geometry | Difficulty: Medium | Standard: 7.G.B.6