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Unformatted text preview: ty. AD BC, so
ADF
ECF because they are corresponding
angles. F
F, so EFC
AFD by AA
Similarity. Then EAB
AFD by transitivity.
28. PSY and PQR are right angles and so they are
congruent. P
P, so PSY
PQR by AA
Similarity. PR WX, so YWX
WYP because
they are alternate interior angles.
WYX
YSP because they are right angles, so
WYX
YSP by AA Similarity. ¬ AB
FE 22. 65
5 23. The perimeter of ABC is 6 5 3 5 15 or
15 9 5. The perimeter of TBS is 4 5
2 5 10 or 10 6 5. 8(x 1) ¬3(x 2)
8x 8 ¬3x 6
5x 8 ¬6
5x ¬14
x ¬ 14
5
BD ¬x 1
¬ 14 1 or 9
5
5
EC ¬x 2
¬...
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 Fall '10
 Dr.Zhan
 Calculus, PreCalculus, Angles

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