A ECD is
isosceles
Given the above, which method would you use to prove A AEC = A BED?
AAS
SSS
SAS
OASA

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.

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?