PLEASE HELP ME I AM FAILING!!!!!! THIS IS MY LAST DAY TO DO THIS
1. If the diameter of a circle changes from 5 cm to 15 cm, how will the circumference change? *
multiplies by 1/3
multiplies by 3
increases by 10
decreases by 10
2.A "radian" is another way to represent a central angle. The symbol used for a radian is π, but it doesn't stand for 3.14 this time. It stands for 180 degrees. This is why your calculator has TWO modes; radian π = 3.14 and degree π = 180! If π = 180 degrees, find: *
3π/2!!!
4.7
9.42
270
540
3.A circle has an area of 36 inches squared. What is the area of a sector of the circle that has a central angle of 30 degrees? *
3 inches squared
6 inches squared
12 inches squared
196 inches squared