   Chapter 7.2, Problem 17E Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085

Solutions

Chapter
Section Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085
Textbook Problem

Draw an obtuse triangle and, by construction, find its circumcenter.

To determine

To draw:

The obtuse triangle constructs its circumcenter.

Explanation

Procedure used:

STEP 1: We start with the obtuse triangle ABC.

STEP 2: Construct the bisector of the line segment AB. Place the compasses on one end of the line segment. Set the compasses width to an approximately two thirds the line length. Without changing the compasses width, draw an arc above and below the line.

STEP 3: Again without changing the compasses width, place the compasses point on the other end of the line. Draw an arc above and below the line so that the arcs cross the first two.

STEP 4: Using a straightedge, draw a line between the points where the arcs intersect. This line is perpendicular to the first line and bisects it.

STEP 5: In the same manner, draw Construct the bisector of the line segment AC.

STEP 6: The point where these two perpendiculars intersect is the obtuse triangle's circumcenter.

Given:

Draw a obtuse triangle. Construct its circumscribed circle.

Clarification:

STEP 1: We start with the obtuse triangle A, B, C.

STEP 2: Construct the bisector of the line segment AB. Place the compasses on B end of the line segment. Set the compasses width to an approximately two thirds the line length. Without changing the compasses width, draw an arc above and below the line

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