CT High School Geometry Curriculum
Give your student the support they need to keep up with Connecticut high school Geometry. Lessons and practice problems matched to what their class is covering right now.
About High School Connecticut Geometry
Connecticut follows the Connecticut Core Standards, which organize high school Geometry around congruence, similarity, right-triangle trigonometry, circles, geometric measurement, and coordinate geometry. Students work through rigid motions and transformations, triangle congruence and similarity proofs, trigonometric ratios, circle theorems, volume formulas, and algebraic connections to geometry. StudyPug provides video lessons, worked examples, and practice problems aligned to every strand of this course.
- Strands: congruence and transformations, similarity and trigonometry, circles, geometric measurement and modeling, and coordinate and algebraic geometry
- Video lessons for every topic, from triangle proofs to volume formulas
- Step-by-step practice problems with full solutions for each strand
- Aligned to the Connecticut Core Standards for high school Geometry
Curriculum topics by strand
Lessons and practice for every Connecticut Core Standards Geometry topic, organized by strand.
CT High School Geometry Topics
- Congruence and transformations: Precise definitions, rigid motions including rotations, reflections, and translations, congruence criteria for triangles (ASA, SAS, SSS), and proofs about lines, angles, triangles, and parallelograms.
- Geometric constructions: Formal constructions using compass and straightedge, including equilateral triangles, squares, and regular hexagons inscribed in a circle.
- Similarity and dilations: Similarity transformations, the AA criterion, triangle similarity proofs, and proportional reasoning with corresponding sides and angles.
- Right-triangle trigonometry: Trigonometric ratios for acute angles, the relationship between sine and cosine of complementary angles, and applications of the Pythagorean Theorem.
- Circles: Inscribed angles, radii, chords, arc length, radian measure, sector area, tangent lines, and equations of circles and parabolas.
- Coordinate and algebraic geometry: Proving geometric theorems with coordinates, slope criteria for parallel and perpendicular lines, partitioning line segments, perimeter and area using the distance formula, and systems of linear and quadratic equations.
- Geometric measurement and modeling: Circumference and area of circles, volume of cylinders, pyramids, cones, and spheres, cross-sections of three-dimensional objects, density, and design problems.
How StudyPug Helps CT High School Geometry Students
When a student gets stuck on a proof or a trigonometry problem, StudyPug lets them pull up a focused video lesson on that exact concept, watch a worked example, and then try practice problems with full step-by-step solutions. There is no need to wait for the next class or hunt through a textbook.
Every lesson is organized by the Connecticut Core Standards strands, so students can move through congruence, similarity, circles, and coordinate geometry in the same order their class follows, making it straightforward to stay on track all year.
Aligned to CT High School Geometry Curriculum
All StudyPug Geometry content is built around the Connecticut Core Standards, covering the same definitions, theorems, constructions, and modeling applications that Connecticut high school students are expected to learn. Families can be confident that what students practice on StudyPug matches what is being taught in class.
Written by the StudyPug Math Team
Last updated June 5, 2026
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