katlin95
Find the length of side GF
A. 31.95
B. 25.3
C. 73.8
D.56.5
Give me a sec gota draw it:)



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katlin95
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dw:1363993414259:dw

yoyointegrals
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im gonna guess A ;P

yoyointegrals
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is this a right triangle?

katlin95
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yep

yoyointegrals
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ok, so a^2 + b^2 = c^2

yoyointegrals
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where a is what we want (or b, doesn't matter)

yoyointegrals
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c = 71^2

yoyointegrals
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a (or b) = 43^2

yoyointegrals
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and solve for the remaining variable (remember to square root it)

katlin95
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my answer I got was C, would that be correct guys?

yoyointegrals
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nope. lemme write the equation.

yoyointegrals
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\[\sqrt{(71^2  43^2)}\]

yoyointegrals
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= a

katlin95
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okay I got 2 sqrt 798 so my answer would be A?

yoyointegrals
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i don't see how you got 798. are you squaring the 71 and 43?

katlin95
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I used subtraction

yoyointegrals
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you have to square the numbers then subtract, then square root. start by doing 71 ^2, what is that

robtobey
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\[2 \sqrt{798}=56.4978 \]

yoyointegrals
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or that, that works^

katlin95
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Alright so my answer would then be D:)! Right?

yoyointegrals
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yes ma'am

katlin95
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Thanks for helping me!:)

yoyointegrals
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sorry if i confused you

katlin95
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its alright:)