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Mathematics 60 Online
OpenStudy (anonymous):

LOOK AT PICTURE PLEASE. Given: ΔABC ≅ ΔEDF What is the length of rounded to the nearest tenth? 3 4 1.1 3.2

OpenStudy (anonymous):

OpenStudy (ash2326):

@MissSosa length of which side?

OpenStudy (anonymous):

Of FE, sorry about that.

OpenStudy (ash2326):

We have ΔABC ≅ ΔEDF Using CPCTC FE=CA so just find AC's length, can you find that?

OpenStudy (anonymous):

I don't know how? Tell me how, and than I can.

OpenStudy (ash2326):

You have to find AC A's coordinates = (0. 1) C's coordinates= (3, 2) so \[AC=\sqrt{(3-0)^2+(2-1)^2}\] Calculate AC from here, FE=AC!!

OpenStudy (anonymous):

okay the triangle is a right angled triangle. therefore \[(bc)^{2}+(ab)^{2}=(ac) ^{2}\] according to pythogoras equation. therefore value of ac is \[\sqrt{10}\] which is equal to \[3.16\approx3.2\] AC is equal to FE

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