Can you help me how to do it

Tell me the answer in the equation

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *

Which of these triangle pairs can be mapped to each other using a single translation? cof hn