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Katyanochek1 [597]

2 years ago

13

Plz help really bad at geometry

1 answer:

trapecia [35]2 years ago

7 0

ST is a midsegment, which tells you that BD=2(ST) or ST=½BD. Use that to substitute the values and find ST.
BD=2(ST)
29+x=2(2x+31)
29+x=4x+62
29=3x+62
-33=3x
x=-11
Now that we know x, we can substitute that into 2x+31 to find ST
ST=2x+31
ST=2(-11)+31
ST=-22+31
ST=9

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Vesna [10]

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