# What Does Dilation Mean In Math (2023)

## 1. Dilation in Math- Meaning, Scale Factor, Properties, and Examples

• Dilation is a process of changing the size of an object or shape by decreasing or increasing its dimensions by some scaling factors.

• In transformations, dilation is the process of resizing the shape larger or smaller using the scale factor of 2 or 1/2, etc. Visit BYJU’S to learn the properties along with examples. ## 2. What is a Dilation in Geometry? (Video & Practice Questions)

• Jun 23, 2023 · Dilation is a process used to change the size of a shape to become either larger or smaller. Unlike other transformations, dilation often does ...

• Dilation is one of the main geometric transformations and makes an object get bigger or smaller, depending on the scale factor. Learn how dilations work here! ## 3. Dilation in Math - Definition & Examples - Tutors

• Jan 11, 2023 · Dilation is the enlarging or shrinking of a mathematical element (a point on a coordinate grid, polygon, line segment) using a specific scale ...

• What is dilation? Learn the definition of dilation in math, define the center of dilation, and use the scale factor to dilate some examples. ## 4. Dilation Geometry - Cuemath

• Dilation means changing the size of an object without changing its shape. The size of the object may be increased or decreased based on the scale factor. An ...

• Dilation is the process of resizing an object by a certain scale factor. In geometry shapes can be dilated by a scale up or a scale down factor. Learn what is dilation in geometry, definition, how to calculate scale factor and some solved examples. ## 5. Dilation in Math | Definition, Formula & Examples - Study.com

• Nov 4, 2021 · A dilation in math is a transformation. It is a transformation that stretches or shrinks a figure from a center point, using a scale factor.

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## 6. Dilation - Varsity Tutors

• A dilation (similarity transformation) is a transformation that changes the size of a figure. It requires a center point and a scale factor , k .

• A dilation (similarity transformation) is a transformation that changes the size of a figure.

## 7. Dilating points (video) | Dilations - Khan Academy

• Duration: 3:07Posted: Oct 31, 2017

• Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere. ## 8. Dilation Definition (Illustrated Mathematics Dictionary) - Math is Fun

• To resize something. In general English it means to make larger. But in Mathematics it means to make larger or smaller.

• Illustrated definition of Dilation: To resize something. In general English it means to make larger. But in Mathematics it means to make larger...

## 9. Performing dilations (video) - Khan Academy

• Duration: 2:46Posted: Oct 17, 2015

• Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere. ## FAQs

### What Does Dilation Mean In Math? ›

Dilations make a shape bigger or smaller. A scale factor tells us how much to multiply by the side lengths to change the size. The scale factor is the ratio of the side length in the new shape (image) to the side length in the corresponding side in the original shape (pre-image).

What does dilation in math mean? ›

A dilation is a transformation that changes the size of a geometric figure but does not change its shape. The dilation math definition indicates that the shape of the figure will not be changed. Instead, the length of each individual side will be changed in a proportional manner.

What is a dilation in math grade 8? ›

A dilation results in a figure that is the same shape, but not the same size. The pre-image and image are no longer congruent, but they are similar. 1) A figure (pre-image) is given to you and a rule For example, ABC is our pre-image and the rule might say “dilate by a scale factor of 2”.

Is dilation adding or multiplying? ›

To dilate a point on a coordinate plane, you multiply its coordinates by a scale factor.

Is dilation multiplying or dividing? ›

Dilations involve multiplication! Dilation with scale factor 2, multiply by 2. Center at the origin.

What is a dilation of 3 in math? ›

The key thing is that the dilation value affects the distance between two points. As in the first example (dilation by a factor of 3), A is originally 1 unit down from P and 2 units to the left of P. 1*3 = 3, so A' (the dilated point) should be 3 units down from P. 2*3 = 6, so A' should be 6 units to the left of P.

What is another word for dilation in math? ›

A dilation that creates a larger image is called an enlargement (or expansion). A dilation that creates a smaller image is called a reduction (or contraction). A dilation is NOT a rigid transformation. (Rigid transformations preserve length, and dilations do not.)

What does a dilation of 3 mean? ›

The key thing is that the dilation value affects the distance between two points. As in the first example (dilation by a factor of 3), A is originally 1 unit down from P and 2 units to the left of P. 1*3 = 3, so A' (the dilated point) should be 3 units down from P. 2*3 = 6, so A' should be 6 units to the left of P.

How long does it take to dilate from 1 to 10? ›

Your cervix needs to open about 10cm for your baby to pass through it. This is what's called being fully dilated. In a 1st pregnancy, the time from the start of established labour to being fully dilated is usually 8 to 18 hours.

What is an example of a dilation equation? ›

We use the word "dilate'' to mean expand or contract. For example, replacing x by x/0.5=x/(1/2)=2x has the effect of contracting toward the y-axis by a factor of 2. If A is negative, we dilate by a factor of |A| and then flip about the y-axis.

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