8.3 Similar Polygons Flashcards
0
Q
what does it mean to be proportional?
A
equal ratios
1
Q
similar polygon (symbol)
A
two polygons are similar (~) if…
-their corresponding ANGLES are CONGRUENT
AND
-lengths of corresponding SIDES are PROPORTIONAL
2
Q
scale factor
A
in 2 SIMILAR polygons, the scale factor is the RATIO of corresponding linear measures
3
Q
what are linear measures?
A
things you can measure with a ruler (side lengths)
4
Q
if two polygons are similar, then the ratio of their perimeters is…
A
equal to the ratios of their corresponding side lengths (AKA scale factor)
