Participants will start in the center of a colorful 45-foot-diameter circle and race to the edge, with the first child in each category to exit the circle declared the winner.

For the third test, the car was driven around a waterlogged 58m diameter circle at increasing speeds until the tyres lost grip. Noise ...

Students should measure the circumference and the diameter of the objects that they brought to school. Students will likely have little trouble measuring the diameter, although they may have some ...