8.2 Prob Solv with proports

# 8.2 Prob Solv with proports - b/t 2 positive #s a...

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8.2 Problem Solving in geom. w/ proportions Pg 465

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MORE proportion properties 3. if then 4.If then d c b a = d d c b b a + = + d c b a = d b c a =
Example True or False I. If ,then 2. If ,then 4 3 c a = 10 15 t s = 2 3 = t s 4 3 3 3 + = + c a true FALSE! Should be a 4!!!

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Example: in the diagram, find LQ. Use cross product property LP LQ MN MQ = M N Q P L 13 6 5 15 5 6 21 LQ = 105=6LQ 17.5=LQ
LISTEN UP! The Geometric mean

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Unformatted text preview: b/t 2 positive #s a &amp; b is x where or Find the geometric mean of 4 &amp; 9. b x x a = ab x = 9 4 x x = 36=x 2 6=x or 9 * 4 = x 36 = x x=6 Example: Geometric Mean between 3 and 27. 27 * 3 = x 81 = x 9 = x Assignment Assignment...
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## This note was uploaded on 02/18/2011 for the course MAC 1147 taught by Professor German during the Spring '08 term at University of Florida.

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8.2 Prob Solv with proports - b/t 2 positive #s a...

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