A cross section of a solid is figure formed by the intersection of aand a solid when a planethrough rhe soild.​

first blank: three dimensional

second blank: object

third blank: cuts

Step-by-step explanation:

A cross section is the intersection of a three-dimensional figure and a plane.

A cross section is the shape we get when cutting straight through an object.

Different cross sections can be taken of the same solid. A plane can slice through a solid in any direction. The resulting figure of a cross section depends on how the solid is "sliced".

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.

dude thats to long figure it

step-by-step explanation: