0
When a shape is enlarged, the scale factor tells by how much to multiply each length of the original shape to get the corresponding length on the new shape.
So with a scale factor for 0.5 (or 1/2), each length of the new shape is 0.5 (or 1/2) times the lengths of the original shape.
For example, to enlarge a triangle with sides 6", 8", 10" by a scale factor or 0.5, the lengths become 6" x 0.5 = 3", 8" x 0.5 = 4", 10" x 0.5 = 5"; so the resulting triangle has sides 3", 4", 5".
To do the enlargement through a centre of enlargement, a straight line is drawn from each point (vertex) of the shape to the centre of enlargement. The distance from the centre to the point is measured and multiplied by the scale factor; this new distance is measured along the same line from the centre of enlargement as the original point.
In this case, negative scale factors can be given, in which case the new distance is measured in the opposite direction from the centre of enlargement, away from the original point.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is a line that shows numbers in order using a scale?
what is a line that shows a number in order using a scale is called what is it called
What things can you weigh using a balance scale?
money
What is the importance of using scale in drawing an object?
because it has to be proportional
How do you convert 600000000000000 into words?
Six hundred katrillion, using the short scale (American units); six hundred quantbillion, using the long scale (British units).
How do you find a scale factor of a perimeter?
Often when working a problem with a scale factor, you are given two similar shapes, and a missing side. For example, you could be given a rectangle with sides A: 3 units and side B: 9 units. Then, you are given another similar rectangle, with side A: 6 units and side B: unknown. To solve this problem, you can simply create a proportion, known in this case as a scale factor. Similar to using a map to predict travel times on a road trip, you can simply create a proportion, in this case, 6:3, which simplifies to 2:1. In this case, the scale factor is 2, so the length of a similar side in the 1st shape is multiplied by 2 to get the length of the same side in the other (2nd) shape. Knowing this side is 9 in the first, and the scale factor is two, we know that the similar side in the 2nd shape is going to be 9 x 2 = 18 units long.
How do you enlarge a shape without a grid?
Hi there, You can do so but your shape might turn out wonky or not in proportion. It really depends because the question might need you to use a grid. Overall it is better using a grid.
Sentence using enlarge?
The class used a microscope in order to enlarge the specimen for viewing closely.
How do you enlarge text on Windows 8?
By using a magnifying glass
How do you know which objects are more dense or less dense?
Density is weight divided by volume. Weight is measured with a scale. Volume can be calculated if an object has a regular shape, using basic geometry, but if it has an irregular shape, it can be calculated using a graduated cylinder.
Surface area of a hypercube?
As you would find the surface area of a normal shape using scale factors: to find the volume scale factor cubed, therefore to find the surface area of the hypercube, you do the scale factor to the power of four. geoffrz450@yahoo.co.uk
How do you enlarge an image without using a photocopier?
To enlarge an image without using a photocopier you can:take a picture of it with an old fashioned camera, develop it and print an enlargement, orscan it and process it on a computer, printing it with your computer printer.
What is the chromatic scale?
A chromatic scale is the scale using all the notes.
Is it possible to enlarge penis size by using the stem cells Technique?
No- and quit worrying about it.
What solfege sllyable starts in the minor scale?
If you are using "movable do" solfege, the first syllable is "do". If you are using "stationary do", it depends which minor scale you are using.
Chromaticism refers to?
using notes of the chromatic scale-apex
Major chords are formed by using notes of a major scale?
Yes, using the root note (tonic note) of the scale and its 3rd and 5th note of the scale.
How do you use a scale?
when using a scale you place an object on it and look at its number.
