Let r1=2 and r2=12 , and consider the figure below. Using point O as the center, Arjun created two scale drawings of △ABC as specified below.
a. △A′B′C′ with scale factor r1
b. △A′′B′′C′′ with scale factor r2
Use paper to recreate Arjun's scale drawing.
The value of the ratio OC′′:OC′ is
