Triangle Similarity Flashcards
What do triangle proportion allow you to find?
missing sides or angles
When the lines are parallel the sides are…
proportional
When the sides are proportional the lines are…
parallel
If two figures are similar and their perimeter ratio is 2/4 what is their area ratio?
4/16
What is a scale drawing?
a drawing that is smaller/larger than the objects real size
In a triangle, what do parallel lines create?
equal proportion
What is a dilation?
transformation that changes an object’s size but not its shape
What is a scale factor?
description of how much the figure has enlarged or reduced
How could you find a triangle side on the coordinate plane
distance formula
Which postulates prove similarity?
SSS or SAS
What is the distance formula?
square root of (x2-x1)squared + (y2-y1) squared