Concept explainers
Exercises
In the “box” shown for Exercise 38, use intuition to answer each question.
a) Are
b) Are
c) Are
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Elementary Geometry for College Students
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- In ABC, the altitudes are concurrent at point D. If mEDA=54 and mFDB=59, find mACB. Exercises 39, 40arrow_forwardNote: Exercises preceded by an asterisk are of a more challenging nature. a In the figure, are lines a, b, and c concurrent? b If one exists, name the point of concurrence for lines a, b, and c.arrow_forwarda Which of these (AB,AB,orAB) represents the length of the line segment AB? b Which (mCBA, mCAB,or, mBAC) represents the measure of mABCarrow_forward
- Show that there is no triangle for which a=4 feet, b=14 feet, and A=60.arrow_forwardWhat relationship, if any, exists between two angles a with equal measures? b that have the same vertex and a common side between them?arrow_forwardGeneralize your findings in Exercise 33. 33. Can you use the construction for the midpoint of a segment to divide a line segment into a three congruent parts? c six congruent parts? b four congruent parts? d eight congruent parts?arrow_forward
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