The second ant walks around the triangle twice since 2(20 cm)=40 cm. The first ant walked 5 1/10+7 1/5=<<5+7=12>>12 1/10 centimeters.
Thus, the third side is 40-12 1/10=<<40-12.1=27.9>>27.9 centimeters. Answer: \boxed{27.9}.
A second ant walks all the way around a triangle drawn in the dirt. Two of the dimensions of the triangle are 5 1/10 centimeters and 7 1/5 centimeters. The total distance traveled by the ant is 20 centimeters. What is the length of the third side of the triangle?
1 answer