Part II: Use the measures from Part I to classify each triangle as acute, obtuse, or right. Explain each classification. (3 points, 1 point each)
a. AABC is a/an
triangle because
b. AABC is a/an
triangle because
C. AABC is a/an
triangle because
av
? Ilse side lengths to identify and classify triangles

Polynomial that can be factored as (3x-4)(3x+4)

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?

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?