SAT Math 2.5 Geometry and Measurement
|Additional Topics in Math||Congruence and similarity|
|Product Type||SAT Math|
|SAT Math||Geometry and Measurement|
Types of Triangles
So…we have to leave out a smaller hunk of cheese to catch that mouse who’s been running
around our office like he owns the place…
Okay, our cheese triangle needs a downgrade. Now… because we’re told that CD is parallel
to BE, we know that triangles ABE and ACD are similar.
We’re also told that ACD is an isosceles triangle… and because all similar triangles
maintain the same proportions, we know that ABE is isosceles as well.
And THAT means that sides AD and AC are equal.
We can subtract the 6 they give us from 16 to get a side length
for AB of 10… which is also the length of AE.
And it’s mere addition from here to get our perimeter… 10 plus 10 plus 8 is 28…
…Answer is B. As in “brie.”