Four small spheres each with radius 6 are cach interually tangent to a large sphere with radius 17. The four small spheres form a ring with each of the four spheres externally tangent to its two neighboring small
spheres. A sixth intermediately sized sphere is intemally tangent to the large sphere and externally tangent
to each of the four small spheres. Its radius is , where m and n are relatively prime positive integers.
Find mn + n.​

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.

i dont know men

step-by-step explanation:

jml angle lkj & angle mj = lm

is there a graph

step-by-step explanation: