Marco sorted these solid figures into two groups. What is true about the groups? Group 1
Group 2
1) Al figures in Group 2 appear to have at
least one triangular face.
) All figures in Group 2 are triangular
prisms
) All figures in Group 1 appear to have at
least one square face.
1) All figures in Group 1 are rectangular
prisms
My Progress >

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.

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).

no

explanation:

you can be freinds, and people but not follow people.