Plz help! QUICK! I'll give brainliest! I need to find the missing side of this shape!

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

(05.08a)triangle abc is transformed to similar triangle a′b′c′ below: a coordinate plane is shown. triangle abc has vertices a at 2 comma 6, b at 2 comma 4, and c at 4 comma 4. triangle a prime b prime c prime has vertices a prime at 1 comma 3, b prime at 1 comma 2, and c prime at 2 comma 2. what is the scale factor of dilation? 1 over 2 1 over 3 1 over 4 1 over 5

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle