The line shown has a slope of 1/2 between point J and point L and between point R and point T.
Which of the following best describes triangle JKL and triangle RST?

A. The length of JL is equal to the length of RT.
B. Triangle JKL is similar to triangle RST.
C. Triangle JKL is congruent JKL to triangle RST.
D. The length of JL is equal to the length of RS.

What is the range? can’t seem to find it out

Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?

What is the geometric mean of 3 and 7? a) square root of 21 b) 2 square root of 6 c) 2 square root of 7 d) 21