The running track shown in the diagram has 2 straight sides. Both ends of the track are semi-circles, or half circles. What is the distance of one lap around the track?

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent. the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244