Geometry For Enjoyment And Challenge
Geometry For Enjoyment And Challenge
91st Edition
ISBN: 9780866099653
Author: Richard Rhoad, George Milauskas, Robert Whipple
Publisher: McDougal Littell
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Chapter 16.5, Problem 2PS
To determine

To find: the ratio of FOFI and HIIK from a given triangle FGHIJK .

Expert Solution & Answer
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Answer to Problem 2PS

  FOFI=1729 and HIIK=89 .

Explanation of Solution

Given:

  Geometry For Enjoyment And Challenge, Chapter 16.5, Problem 2PS

  HGHF=49 andFMMK=23 .

Concept used:

If two points balanced the product of the mass and distance from the line of the balance of on point will be equal to the product if the mass and distance from the same line balance of the other point.

  w1w2=l2l1.w1×l1=w2×l2.wb=w1+w2.

Where wb is weight at which the weight is divided or incase of triangle the line which bisect the two weight.

Calculation:

According to the given:

  HGHF=49 andFMMK=23 .

From the ratio from given the line HG provides a weight on F or wF=4.

Similarly, the ratio from the given line FK provides a weight on F or wF=3.

Therefore, the weight on F

  wF=3 or 4 so, take the multiple of both which is wF=12 .

  wH=9.WK=8.

Which implies weight on I :

  wI=17.

According to the given diagram:

  FI=FO+OI.FI=17+12=29.FOFI=1729.

Similarly, that of ratio of

  HIIK=89 .

Hence, FOFI=1729 and HIIK=89 .

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