# Geometry Help & Practice!

Get better math marks with our complete Geometry help, whether it's Geometry common core standards, Geometry EOC, or EngageNY Geometry (Regents Examination). We've got you covered!

Keeping with your class or textbook, our thorough help for Geometry includes topics such as Similar triangles, Geometry proofs, right triangle trigonometry, 3D shapes, Triangle geometry, Midpoint, Surface area of circles, Translations, and more. Learn the concepts with our video tutorials that show you step-by-step solutions to even the hardest geometry problems. Then, strengthen your understanding with tons of geometry practice.

All our lessons are taught by experienced Geometry teachers. Let's finish your homework in no time, and ACE that final.

## Everything You Need in One PlaceHomework problems? Exam preparation? Trying to grasp a concept or just brushing up the basics? Our extensive help & practice library have got you covered. | ## Learn and Practice With EaseOur proven video lessons ease you through problems quickly, and you get tonnes of friendly practice on questions that trip students up on tests and finals. | ## Instant and Unlimited HelpOur personalized learning platform enables you to instantly find the exact walkthrough to your specific type of question. Activate unlimited help now! |

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##### 1Measuring Systems

##### 2Surface Area and Volume

##### 3Points, Lines, Segments, Midpoints and Chords

##### 4Circles, plane and coordinate

- 4.1Circles and circumference
- 4.2Arcs of a circle
- 4.3Areas and sectors of circles
- 4.4Angles in a circle
- 4.5Chord properties in circle geometry
- 4.6Tangent properties in circle geometry
- 4.7Central angles and proofs
- 4.8Inscribed angles and proofs
- 4.9Central and inscribed angles in circles
- 4.10Circle chord, tangent, and inscribed angles proofs

- 4.1Circles and circumference
##### 5Triangles and special triangles

- 5.1Pythagorean theorem
- 5.2Solving expressions using 45-45-90 special right triangles
- 5.3Solving expressions using 30-60-90 special right triangles
- 5.4Classifying triangles
- 5.5Congruence and congruent triangles
- 5.6Triangles congruent by SSS proofs
- 5.7Triangles congruent by SAS and HL proofs
- 5.8Triangles congruent by ASA and AAS proofs
- 5.9Isosceles and equilateral triangles

- 5.1Pythagorean theorem
##### 6Angles and trigonometry

- 6.1Use sine ratio to calculate angels and side (Sin = $\frac{o}{h})$
- 6.2Use cosine ratio to calculate angles and side (Cos = $\frac{a}{h}$ )
- 6.3Use tangent ratio to calculate angles and side (Tan = $\frac{o}{a}$ )
- 6.4Combination of SohCahToa questions
- 6.5Word problems relating ladder in trigonometry
- 6.6Word problems relating guy wire in trigonometry
- 6.7Other word problems relating angles in trigonometry

- 6.1Use sine ratio to calculate angels and side (Sin = $\frac{o}{h})$
##### 7Sine Rule and Cosine Rule

##### 8Bearings

##### 9Transformations

##### 10Similarity

##### 112D figures and 3D figures

##### 12Probability

##### 13Logic

##### 14Reasoning

##### 15Set Theory

##### 16Vectors

##### 17Angles, lines and transversals