News & Resources
Geometry Test 1 Problem 11
Question from Amy: Trouble seeing cube. Help? Answer from Cassidy: If you missed problem 11 (under Review Section 1), you can use this template to print out that diagram, and fold the cube at home. Then you can see with your own eyes (and hands!) how that cube comes...
Geometry Ch14.3 #34
Question from Anna: Jacob's Geometry Chapter 14 Lesson 3 Problem #34. How do you work out this problem? Answer from Cassidy: I wrote this one out on graph paper for you. Click on the graphic to make it larger if needed. Hope it helps!
Geometry Ch14.2 #22 #23
Question from John: Please explain the answer given in the Enhanced Teacher's Guide for Chapter 14, Lesson 2, Number 22, 23. Answer from Dr. Callahan: The method implied in Jacob's Enhanced Teacher's Guide is based on dividing the polygon into triangles by drawing...
Geometry Ch12.5 #54
Question from Charlie in Wisconsin: Chapter 12, Lesson 5, Number 54 has incorrect answer in solutions. Answer from Dr. Callahan: The answer has been corrected in the new Jacob's Enhanced Teachers Guide to say "At other positions on the major arc." Thanks to Harold...
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...
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