Identifying Similarity !!!
How to figure out similarity
two figures are similar if the second figure can be obtained from the first by a sequence of transformations and dilation.
Vocabulary Words and Definition
~ transformation - is an operation that maps a geometric figure, preimage, onto a new figure, image. ~ dilation - is a transformation that enlarge or reduces a figure by a scale factor of a whole number or a fraction.
Similarity of an Triangle by using
how to determine if two triangles are similar by using transformation
Step 1. Translate the blue ABC down 3 units and 5 units to the right so that the blue A maps up onto red A.
Step 2. Write the ratios comparing the length of each side. blue: AB/red: AB = 5/5 or 1 blue: BC/red: BC = 2/2 or 1.
Look at the figure up above?
Is the figure above similar by translation?Why or why not.