For the first graph on the left. Locate the gray triangle. This is the preimage (our original that we will dilate). Locate the point (-10,2). If that points new image is (-5,1)What scale factor did we multiply by to get there? How do I get from -10 to -5? How do I get from 2 to 1? What would you multiply by?

cut 138 centimeters off

step-by-step explanation:

250-112 = 138

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step-by-step explanation:

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.