In the figure at left, JLK and JNM are both right triangles. Which of the following is equal to KL?
JL . tan y

(I'm studying for my SAT and need an explanation so I know how to do this during the real test.)

When you look at the data about all of the children in your setting, you can learn a. about child development. b. how well each individual child is performing. c. what outside factors you need to change. d. how effective your instruction and environment are.