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iren2701 [21]
3 years ago
8

How to do this ?!!!!

Mathematics
1 answer:
kykrilka [37]3 years ago
4 0
I actually forgot what a trapezoid was and had to look it up.
Anyway, in an isosceles trapezoid the two legs are the same length, so we now have 3x-9=7x-10. Now it's simply a problem where you solve for x.
3x-9=7x-10
-9=4x-10
1=4x
x=1/4
Hope this helps :)
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