# Geometry

## Geometry

Points, lines, planes, angles, circles, triangles, quadrilaterals, Pythagorean Theorem, conic sections, proofs and more

### Sample Lesson

• Points, Lines, Rays and Line Segments
• Planes and Sets
• Angles
• Types of Angles
• Parallel and Perpendicular Lines with Midpoints and Bisectors
• Supplementary and Complementary Angles
• Transversals with Interior and Exterior Angles
• Perimeter of a Rectangle, Triangle, Parallelogram, and Trapezoid
• Area of a Rectangle, Triangle, Parallelogram, and Trapezoid
• Constructing and Identifying Triangles
• Regular Polygons
• Geometry of a Circle, Sphere and Ellipse
• Inscribed and Circumscribed Figures
• Area and Circumference of a Circle
• Area of an Ellipse
• Latitude and Longitude
• Volume of Rectangular Solid and Cylinder
• Volume of Pyramid, Cone, Prism, and Sphere
• Surface Area of Solids
• Pythagorean Theorem
• More on Radicals
• Special Triangles: (45°-45°-90°)
• Special Triangles: (30°-60°-90°)
• Axioms and Postulates
• Corresponding Parts of Triangles and Remote Interior Angles
• Proving Triangles Congruent with SSS and SAS
• Proving Triangles Congruent with ASA and AAS
• Proving Triangles Congruent with HL, LL, HA, and LA
• Proving Triangles Similar with AA and Proportion or Ratio
• Transformational Geometry
• Trigonometric Functions: Sine, Cosine and Tangent
• Inverse Trigonometric Functions: Secant, Cosecant, and Cotangent
• Sin² + Cos² = 1

## Geometry- Testimonials

“Mr. Demme, I am a sophomore in highschool and I started this year with a Geometry new to teaching math. I have never fully understood math but now it's starting to come easier for me. Thank you.” — Mikayla