TNReady Geometry

With 90-degree triangles, transformations, shapes, and angles, Shmoop's TNReady Geometry course is guaranteed to keep you warm. If 90 degrees isn't hot enough, we'll have you working on 180-degree triangles to prove similarity and congruence, and even 360-degree rotations of two-dimensional objects.

This course, constructed with the help of some protractors and compasses, is fully equipped with brand new computer-based question types making it almost too hot to handle.

Even though TNReady wasn't as... well, ready as it claimed, we at Shmoop still want to make sure you're prepared with all of Tennessee's standards come test day.

What's Inside Shmoop's Online TNReady Geometry Prep

Shmoop is a labor of love from folks who are really, really into learning. Our test prep resources will help you prepare for exams with comprehensive, engaging, and frankly hilarious materials that bring the test to life. No, not like that. Put down those torches.
Here, you'll find…

• engaging topic review for all shapes and sizes
• practice drills to test your prowess
• a diagnostic exam to help you identify your strengths
• two full-length practice exams so you're fully armed come test day
• test-taking tips and strategies from experts who know what they're talking about
• chances to earn Shmoints and climb the leaderboard

Sample Content

Contrary to what it sounds like, congruence isn't a type of communicable disease capable of bringing even the strongest of human specimens to their knees. Nope, congruence is a mathematical term used to compare two shapes. We covered the basic rules of transformations in the last section, but this next one focuses on how to apply these rules to determine congruency between two shapes. Now's not the time to fake being sick, Shmoopers.

If something's rigid, it's firm and unchangeable. Take the rigid routine of a school day, for example. You can't just go to lunch in the middle of biology class, even if the pizza smells better than the formaldehyde frogs.

When it comes to shapes, rigid motions move a shape around, but preserve its dimensions. Up, down, reflect, rotate, left, right: They're all rigid motions. There's no enlargement or shrinkage here, only changes in position. Two shapes are said to be congruent if a rigid motion has occurred on the coordinate plane that carries one shape onto the other. Both shapes still have the same number of sides and their corresponding angles and sides are still the same. It's a two-for-one deal. Select items only.

We know these rigid motions by their other name—their alias, if you will—transformations. (It's kind of a Bruce Wayne/Batman scenario.) Rotations, reflections, and translations are all rigid motions. Dilations aren't in this club, however, because the shape changes size.