Question 25 of 25
2 points
which of these examples is an error of addition by one?
o
a. 35,427 + 63,562 = 98,889
o
b. 43,724 + 54,263 = 97,987
o
c. 28,546 + 61,352 = 89,898
o d. 17,642+72,345 = 89,987

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?