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Posted by on Wednesday, November 28, 2012 at 1:56pm.

A right triangle has an area of 13 m2. The dimensions of the triangle are increased by a scale factor of 3. What is the area of the new triangle? Please help!!!!

a)39 m2
b)169 m2
c)117 m2
d)142 m2

  • Algebra 8th grade please help!!!!!! - , Wednesday, November 28, 2012 at 2:34pm

    Please help!!!! :(

  • Algebra 8th grade please help!!!!!! - , Wednesday, November 28, 2012 at 3:03pm

    if the sides grow by a factor of 3, the area grows by a factor of 3^2 = 9

    9*13 = 117

  • Algebra 8th grade please help!!!!!! - , Wednesday, November 28, 2012 at 3:53pm

    Thank you!!! :)

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