But how do we know that we are right? We can check it using Ratios! So we created our ratios of our two new quadrilaterals and compared them using cross products. Okay, we have that down pat! Now let’s bring in that new word, SCALE FACTOR! Yep, makes life so much easier if we are able to multiply our denominators and numerators by a number (the scale factor) to determine equivalent ratios!
As a wrap-up, they answered a Post It, Prove It for me that asked, “Create two similar figures and prove their similarity through a proportion. Check your work by comparing the ratios in the proportion using cross products or similar figures.”
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