   Chapter 1.CR, Problem 51CR ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698

#### Solutions

Chapter
Section ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698
Textbook Problem
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# Given: m ∠ B = 50 ° Construct: An angle whose measure is 20 ° To determine

To find:

The complete construction of an angle whose measure is 20°.

Explanation

Given:

The given figure is,

mB=50°.

Approach:

The steps are given below for the complete construction.

a) Draw two circles using the point A and B as center with equal radii AB. Let C be the point of intersection of these circles. Now draw the line segments AC,BC and AB.

b) Draw an angle mA=60°. Bisect this angle to get an angle that measures 30°.

c) A circle is drawn from point A with AD and AE as radius where point D lies on AC and point E lies on AB. Two circles are drawn from point D and E with same radius AD and AE

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