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question

what is the measure of angle ced?
there are two triangles labeled abc and dce with a common vertex c. in triangle abc, angle bac is labeled as m, and angle abc is labeled as 60 degrees. in triangle dce, angle cde is labeled as 60 degrees.

answer choices

a. m, because triangle abc is similar to triangle edc
b. m over 2, because triangle abc is congruent to triangle dce
c. m + 60 degrees, because triangle abc is similar to triangle dce
d. 120 degrees − m, because triangle abc is congruent to triangle dce

x =m

hi see this answer

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.