Answer
No.
Work Step by Step
Some triangles (such as obtuse triangles) have altitudes that lie outside the triangle, itself. See attached image.
Geometry: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281159
ISBN 13:
978-0-13328-115-6
Chapter 10 - Area - 10-1 Areas of Parallelograms and Triangles - Lesson Check - Page 619: 5
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