The way you use a scale factor to enlarge a triangle is to multiply each side of the triangle by that scale factor. Your triangle will then be that many times larger.
Its simple you use use two rhombuses and one triangle.
ASA
If you are given a picture of a triangle and no information about it, then you could use a protractor.
If it's a right angle triangle then use Pythagoras' theorem to find the 3rd side
If it is a right triangle, you can use the Pythagorean theorem to find the height since it will be on of the sides. If it is an equilateral triangle, you can break it up into two right triangles and use the part above. If it is an oblique triangle, you use the angles and some trigonometry to find it. Since the area is 1/2 b x h, if you are given the area, you can solve for the height.
No, there cannot be a zero in any scale factor.
a scale factor of 4.5 is your answer
Surveying and land use jobs which use a map to scale. Also construction jobs will use plans of the building which are drawn to scale with a stated scale factor.
If you assume that 2.5 refers to the scale factor, you multiply each linear measurement by 2.5. This includes the width, the length, and - if you want to use it to construct your new rectangle - the diagonals. It also happens to include the perimeter, but you probably won't need that to construct the rectangle.
just use a scale factor! multiply all the dimensions by X and you'll have the dimensions of the new triangle. of course the angles and all are the same b.c theyre similar.
New perimeter = old perimeter*scale factor New area = Old area*scale factor2
multiplication
designing a scale model
If you increase a shape by a scale factor of 2, you double the height and double the width. If you increase a shape by a scale factor of 3, you treble the height and treble the width. If you are interested in doing this mechanically, use a pantograph.
It is factor to scaling down the image.
The number used to multiply the lengths of a figure to stretch or shrink it to a similar image. If we use a scale factor of 3, all the corresponding lengths in the original side lengths will be multiplied by three.
If you are trying to read a map, there is MOST LIKELY a scale factor (i.e. 1 inch=2.5 miles. You could also use it in blueprints, like if you want to rearrange you bedroom. You can't fit your bedroom on a piece of computer paper! So you may use a scale factor for that (i.e. 1/2 in.= 1 foot).