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spayn [35]
4 years ago
15

What is the value of x? Enter your answer in the box. x = A triangle with midsegment parallel to the base. the left side is labe

led 72 cm below the midsegment and 9 cm above the midsegment. the right side is labeled 56 cm below the midsegment and 3 x minus 20 above the midsegment.
Mathematics
2 answers:
inessss [21]4 years ago
7 0
A segment is only a "midsegment" if it connects midpoints. When labels above and below are 9 and 72, it is clearly not a midsegment. However, because it is parallel to the base, segments above and below on one side are proportional to those in similar positions on the other side.

72/9 = 56/(3x -20)

We can multiply by (3x -20)/8 to get

3x -20 = 7
3x = 27
x = 9
melisa1 [442]4 years ago
3 0


72/9 = 56/(3x -20)

We can multiply by (3x -20)/8 to get

3x -20 = 7
3x = 27
x = 9
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