Tonya and pearl each completed a separate proof to show that alternate interior angles akl and flk are congruent. who completed the proof incorrectly?

answer:

pearl completed the proof incorrectly.

step-by-step explanation:

the only difference between the two proofs are the second line where they mentioned different reasons for the same proof. akl and gkb are vertical angles, not adjacent angles as adjacent angles share a vortex while vertical angles are opposite each other, which is the case in this diagram .

pearl's proof is wrong because < akl and < gkb are vertical angles.

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

6/20

step-by-step explanation: