Lesson 6 Practice Problems 1. A pink paint mixture uses 4 cups of white paint for every 3 cups of red paint. The
table shows different quantities of red and white paint for the same shade of pink.
Complete the table.
white paint (cups) red paint (cups)
4
3
1
1
4
5

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?