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Description
Masterbooks: Geometry Student BookHarold Jacobs' Geometry: Seeing, Doing, Understanding is an authoritative math text through which nearly one million students have learned the principles of geometry. Students learn through a combination of discussions, cartoons, anecdotes, and vivid exercises that work together to develop an understanding of the concepts behind the formulas. A proof based course, Jacobs' Geometry will help students see the main ideas and applications, put their new
Harold Jacobs' Geometry: Seeing, Doing, Understanding is an authoritative math text through which nearly one million students have learned the principles of geometry. Students learn through a combination of discussions, cartoons, anecdotes, and vivid exercises that work together to develop an understanding of the concepts behind the formulas. A proof-based course, Jacobs' Geometry will help students see the main ideas and applications, put their new understanding into practice through doing the exercises, and finally understand why geometry works the way it does. Sixteen units cover: lines, angles, direct and indirect proofs, congruence, inequalities, parallel lines, quadrilaterals, transformations, area, similarity, triangles, circles, concurrence theorems, non-Euclidean geometries, and more.780 pages, indexed, softcover. Selected answers are provided in the back of the text.
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4.4 ★★★★★
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Product Reviews
★★★★★ 5
Well made, sturdy toys
Color: 3 Pack Donkey Goat Dog
So cute! Sturdy too, great for tugs of war.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 5
None of the stuffing pulled out
I have 3 dogs. 1 is very gentle w/ stuffed toys. 1 is new to us and very anxious and kept stealing things like water bottles to gnaw on. And 1 destroys every stuffed toy we have ever brought into the house. We bought these for the anxious one. She was recently adopted and very people shy and afraid of the world around her. She doesn't know how to play with people and she's terrified if you try to throw a ball or if you squeak a squeaker, but we also needed something durable enough for her chewing that would be safe for her and could also withstand the toy destroyer possibly getting hold of it. They've been playing with these for a few months now and the most damage is that some of the rope necks are a bit frayed and a lot of the fuzz on the outside is gone, but none of them have been torn open. And the squeakers are in there in a way that it's hard to make them squeak if not doing so intentionally. The 1 dog can have plush toys again, the 1 dog can gnaw and chew to reduce her anxiety and the 3rd can chew and attack it without me having to clean up stuffing all the time
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Reviewed in the United States on August 6, 2022
★★★★★ 4
Very durable
Color: 3 Pack Donkey Giraffe Dog
For some reason I thought they would be a little bigger but I have to say they are very durable. My Saint Bernard has not shredded them to pieces yet. Normally the toys last a day or two but he still has them after 3 weeks. 👍
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Reviewed in the United States on February 25, 2026
★★★★★ 5
Well made and seem durable
Color: 3 Pack Donkey Goat Dog
Cute and my dogs love them !
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Reviewed in the United States on April 16, 2026
★★★★★ 1
Not durable
Color: 3 Pack Donkey Giraffe Dog
Toys look nice, but they did not last 2 days with our 6 months Mini Aussie. It's nice as a display item, not as a toy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
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