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Geometry Ch12.5 #43
Question from Charlie in Wisconsin: Chapter 12, Lesson 5, Number 43 has the wrong solution in older version of Teachers Guide Published by Freeman. Answer from Dr. Callahan: The correct answer is "To other points on the major arc AB." Harold Jacobs indicates that this...
Geometry Midterm Review #97 Pythagorean Theorem
Deals with concepts from Jacob's Geometry Chapter 5. Learning about Pythagorean Theorem, and the extension to this theorem called Theorem 38 (Triangle Inequalities Theorem). These two concepts can seem to be at odds with each other, but in this explanation we show you...
Geometry Ch10.3 #7-12
Question from Emilio, In Geometry Chapter 10, Lesson 3, Set 1, Pblms 7 - 12, I don't understand what they are trying to teach comparing Descartes to the Side-Splitter Theorem. What I am supposed to learn from this set of problems? Answer: Do not get too caught up...
Geometry Ch3.4 #19 #20 #21 #22 #23
Question from Mary: Geometry Chapter 3 Lesson 4 Numbers 19-23. Help please? Answer from Cassidy Cash: Let’s start at the top. #19) This one is 45 degrees, because it is half of 90. You are right that half of 360 is 180, and you are also right that the figure is a...
Geometry Ch3.2 #47
Question from Amy: Geometry Chapter 3 Lesson 2 Number 47 Answer from Cassidy Cash: For Number 47 you are basically copying the proof on page 86 of the text, but replacing some of the values to account for the change in inequalities. If you look at the number...
Geometry Ch2.6 #9 #10
Question from John: Chapter 2, Lesson 6, Number 9 Why does the demonstration not prove the case? Answer from Cassidy Cash: The issue is that in number 9 he has proved a SINGLE CASE, not all cases. If I tried to prove to you that the sun is "Always" to the west and...
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