Geometry, Student Edition
Geometry, Student Edition
1st Edition
ISBN: 9780078884849
Author: McGraw-Hill, McGraw Hill
Publisher: Glencoe/McGraw-Hill School Pub Co
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Question
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Chapter 5.4, Problem 51SPR
To determine

The coordinates of the circumcenter of triangle with the given vertices.

Expert Solution & Answer
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Answer to Problem 51SPR

  (75,135) or (125,235) .

Explanation of Solution

Given information:

Find the coordinates of the circumcenter of triangle with the given vertices.

  A(4,0),B(2,4),C(0,6)

Calculation:

The circumcenter of the triangle is the intersection point of the perpendicular bisectors.

The slope of AC¯ is 0640 or 32 .So, the slope of the perpendicular bisector DE¯ of is 25 . The midpoint of AC¯ is (0+42,0+62) or (2,3) .

Now, the equation of the perpendicular bisector to AC¯ is:

  y3=23(x2)y=23x43+3y=23x+53

Use the same way to find the equation of the perpendicular bisector to AB¯ . That is, y2=32(x1) or y=32x+12

Solve the equations to find the intersection point of the perpendicular bisectors:

  23x+53=32x+1223x32x=125356x=76x=75y=32(75)+12=2110+12=135

  Geometry, Student Edition, Chapter 5.4, Problem 51SPR

So, the coordinates of the circumcenter of ABC are (75,135) or (125,235) .

Chapter 5 Solutions

Geometry, Student Edition

Ch. 5.1 - Prob. 2CYUCh. 5.1 - Prob. 3CYUCh. 5.1 - Prob. 4CYUCh. 5.1 - Prob. 5CYUCh. 5.1 - Prob. 6CYUCh. 5.1 - Prob. 7CYUCh. 5.1 - Prob. 8CYUCh. 5.1 - Prob. 9PPSCh. 5.1 - Prob. 10PPSCh. 5.1 - Prob. 11PPSCh. 5.1 - Prob. 12PPSCh. 5.1 - Prob. 13PPSCh. 5.1 - Prob. 14PPSCh. 5.1 - Prob. 15PPSCh. 5.1 - Prob. 16PPSCh. 5.1 - Prob. 17PPSCh. 5.1 - Prob. 18PPSCh. 5.1 - Prob. 19PPSCh. 5.1 - Prob. 20PPSCh. 5.1 - Prob. 21PPSCh. 5.1 - Prob. 22PPSCh. 5.1 - Prob. 23PPSCh. 5.1 - Prob. 24PPSCh. 5.1 - Prob. 25PPSCh. 5.1 - Prob. 26PPSCh. 5.1 - Prob. 27PPSCh. 5.1 - Prob. 28PPSCh. 5.1 - Prob. 29PPSCh. 5.1 - Prob. 30PPSCh. 5.1 - Prob. 31PPSCh. 5.1 - Prob. 32PPSCh. 5.1 - Prob. 33PPSCh. 5.1 - Prob. 34PPSCh. 5.1 - Prob. 35PPSCh. 5.1 - Prob. 36PPSCh. 5.1 - Prob. 37PPSCh. 5.1 - Prob. 38PPSCh. 5.1 - Prob. 39PPSCh. 5.1 - Prob. 40PPSCh. 5.1 - Prob. 41PPSCh. 5.1 - Prob. 42PPSCh. 5.1 - Prob. 43PPSCh. 5.1 - Prob. 44PPSCh. 5.1 - Prob. 45PPSCh. 5.1 - Prob. 46PPSCh. 5.1 - Prob. 47PPSCh. 5.1 - Prob. 48HPCh. 5.1 - Prob. 49HPCh. 5.1 - 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