Question

Judith is digging for sandstone at a geological site. She has 160 meters of rope and 4 stakes to mark off a rectangular area. Which set of dimensions will create a rectangle using all the rope Judith has with her? 16 m × 10 m 80 m × 80 m 65 m × 10 m 70 m × 10 m

Answer 1

She has 160 meters total
Option 1: 16+16+10+10=32+20=52≠160
Option 2: 80+80+80+80=320≠160
Option 3: 65+65+10+10=130+20=150≠160
Option 4: 70+70+10+10=140+20=160
Solution: Option 4: 70m×10m