I think it’s option 4. The bottom right one. Hope that’s right!
Unit rate is like miles per hour. If John walks 500 miles in 5 hours, the unit rate is 500/5=100 miles per hour.
Answer:
How to calculate and derive the formula for the Chord Length of a circle. The formula for the chord length is: 2rsin(theta/2) where r is the radius of the circle and theta is the angle from the centre of the circle to the two points of the chord.