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tino4ka555 [31]
3 years ago
13

Sat Calc sectionI don't think there are questions as difficult as this one, but please help​

SAT
1 answer:
Oksi-84 [34.3K]3 years ago
6 0

Answer: D

Explanation:

Area of triangle = \frac{1}{2} bh

  • b = base length
  • h = height

Area of ΔABC =

  • \frac{1}{2} CE * AB
  • \frac{1}{2} BD * AC

Since it's the same triangle, those two areas should equal each other:

\frac{1}{2} CE*AB=\frac{1}{2} BD*AC\\\frac{1}{2} *9*8=\frac{1}{2} *7*AC\\\frac{1}{2} *72=\frac{7}{2} AC\\36*2=7AC\\AC=\frac{72}{7} =10\frac{2}{7}

<em>I hope this is correct</em>

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