News & Resources
Geometry Ch1.1 #19
Question from Laura: In Jacob's Geometry, Chapter 1, Lesson 1, Number 19, I get ABG. How is that not an answer? Answer from Cassidy Cash: Typo in the book. You are correct! The answer should include as an answer A-B-G instead of A-B-C.
Geometry Resources
A protractor is a necessary too for Harold Jacob's Geometry. You will need a real protractor for your Geometry homework and one comes with our Geometry Bundle, but you can find one at any school supply store too. Use this online tool to help you become familiar...
Geometry Test 1 #17
Question for Martha: Jacob's Geometry Test 1 #17 Answer from Cassidy Cash: This problem involved using the triangle theorem that says “All three angles of any triangle will add together to give 180” (this is a paraphrase of the Triangle Sum Theorem, page 66) The...
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...
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