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05 Feb 2020, 03:31
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The bases of a trapezoid have lengths 10 and 15. A segment parallel to the bases passes through the point of intersection of the diagonals and extends from one side to the other. What is the length of the segment?
A. 5
B. 12
C. √150
D. 25/√2
E. 18
Are You Up For the Challenge: 700 Level Questions
A. 5
B. 12
C. √150
D. 25/√2
E. 18
Are You Up For the Challenge: 700 Level Questions
05 Feb 2020, 04:55
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There is a formula for Harmonic \(Mean = \frac{2ab}{(a+b)}\)
a, b — lengths of bases
The length of segment = \(\frac{2*10*15}{(10+15)} = \frac{300}{25}= 12\)
The answer is B.
Posted from my mobile device
a, b — lengths of bases
The length of segment = \(\frac{2*10*15}{(10+15)} = \frac{300}{25}= 12\)
The answer is B.
Posted from my mobile device
ShankSouljaBoi
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05 Feb 2020, 05:00
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lacktutor
There is a formula for Harmonic \(Mean = \frac{2ab}{(a+b)}\)
a, b — lengths of bases
The length of segment = \(\frac{2*10*15}{(10+15)} = \frac{300}{25}= 12\)
The answer is B.
Posted from my mobile device
a, b — lengths of bases
The length of segment = \(\frac{2*10*15}{(10+15)} = \frac{300}{25}= 12\)
The answer is B.
Posted from my mobile device
How did you recognize HM has to be used ??
Also, is this applicable to all quadrilaterals in similar questions ???
Regards
