# What are cross sections of 3d figures?

Space and AstronomyA cross-section is **a plane section that is a section of a three-dimensional object that is parallel to one of its planes of symmetry or perpendicular to one of its lines of symmetry**.

## What is cross section of a figure?

In geometry and science, a cross section is **the non-empty intersection of a solid body in three-dimensional space with a plane, or the analog in higher-dimensional spaces**. Cutting an object into slices creates many parallel cross-sections.

## How can you do the cross-sections of three-dimensional figures?

Video quote: *Any way you slice it you can get two-dimensional shapes from three-dimensional figures. When you slice a cylinder from top to bottom that is perpendicular to its base then look at the cross-section.*

## How do you find cross-sections?

**How to calculate cross-sectional area of a pipe?**

- Subtract the squares of inner diameter from the outer diameter.
- Multiply the number with π.
- Divide the product by 4.

## What is a cross section of a cube?

Slicing Solids

A cross section is **the face you get when you make one slice through an object**. Below is a sample slice through a cube, showing one of the cross sections you can get. The polygon formed by the slice is the cross section.

## What’s area of cross-section?

The cross-sectional area is **the area of a two-dimensional shape that is obtained when a three-dimensional object – such as a cylinder – is sliced perpendicular to some specified axis at a point**. For example, the cross-section of a cylinder – when sliced parallel to its base – is a circle.

## What are the different types of cross sections?

They allow us to see what’s inside an object. Some of the most famous cross sections are conic sections, cross sections are created by slicing a right cone in various ways. There are four types of conic sections, **a circle, an ellipse, a parabola, and a hyperbola**.

## How do you draw a cross section in geometry?

Video quote: *So I when you cut parallel or perpendicular on a rectangular prism. You form a rectangle. When you cut a cylinder a cylinder you'll see it right there the cross-section is a circle.*

## What is cross section and longitudinal section?

Longitudinal studies and cross-sectional studies are **two different types of research design**. In a cross-sectional study you collect data from a population at a specific point in time; in a longitudinal study you repeatedly collect data from the same sample over an extended period of time.

## Is transverse and cross-section the same?

**A transverse section is a cross-sectional part** that is achieved by cutting the body or any part of the body structure in real or with help of imaging techniques in a horizontal plane. That plane crisscrosses the longitudinal axis at a 90-degree angle.

## What is a cross-section in biology?

Cross-section: In anatomy, **a transverse cut through a structure or tissue**. The opposite is longitudinal section.

## What is cross-section research?

A cross-sectional study is **a type of research design in which you collect data from many different individuals at a single point in time**. In cross-sectional research, you observe variables without influencing them.

## What is a cross-sectional study example?

Cross-sectional study example 2: **Men and cancer**

Another example of a cross-sectional study would be a medical study examining the prevalence of cancer amongst a defined population. The researcher can evaluate people of different ages, ethnicities, geographical locations, and social backgrounds.

## What are the variables in a cross-sectional study?

Study different variables at the same time

Cross-sectional studies examine a population and draw conclusions from that group. This means that researchers can analyze that group and study different variables at the same time. Variables of a population could include **gender, age, income or level of education**.

## What is a cross-sectional descriptive study design?

A descriptive cross-sectional study is **a study in which the disease or condition and potentially related factors are measured at a specific point in time for a defined population**.

## What type of study design is cross-sectional?

Cross-sectional study design is a type of **observational study design**. In a cross-sectional study, the investigator measures the outcome and the exposures in the study participants at the same time.

## Are cross-sectional studies descriptive or analytical?

Cross-sectional studies **may be either descriptive or analytical**. Descriptive studies mostly aim to provide estimates of prevalence of disease, traits such as smoking behavior, people′s attitudes, knowledge or health behavior, whereas analytical studies aim to assess associations between different parameters.

## What level of research is cross-sectional?

Cross sectional study designs and case series form **the lowest level of the aetiology hierarchy**. In the cross sectional design, data concerning each subject is often recorded at one point in time.

## Is cross-sectional design qualitative or quantitative?

quantitative

**Most cross-sectional studies are quantitative**. They gather data through interviews, questionnaires, and focus groups over a certain period in time which may be in the past or the present, and then analyze the results.

## Is cross-sectional descriptive design qualitative or quantitative?

quantitative

Although **the majority of cross-sectional studies is quantitative, cross-sectional designs can be also be qualitative or mixed-method** in their design.

## What is the purpose of cross-sectional study?

Cross-sectional studies are observational studies that analyze data from a population at a single point in time. They are often used **to measure the prevalence of health outcomes, understand determinants of health, and describe features of a population**.

## What is a cross-sectional mixed methods study?

sectional mixed methods studies that use both quantitative and qualitative approaches. concurrently to test the consistency of both quantitative results and qualitative findings, or to. amplify and enhance the results from one research approach with the findings from the other. methodology.

## What is cross-sectional design in quantitative research?

Cross-sectional studies **look at a population at a single point in time, like taking a slice or cross-section of a group, and variables are recorded for each participant**.

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