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Worked examples: geometry
Sal does the 80 problems from the released questions from the California Standards Test for Geometry. Basic understanding of Algebra I necessary.
Three example problems involving perimeter and area
Perimeter of rectangle covered by 9 non-overlapping squares. From 2000 American Invitational Math Exam
1-3, deductive reasoning and congruent angles
4-6, proof by contradiction
7-10, more proofs (10 continued in next video)
10-14, similar triangles
17-20, more similar and congruent triangles
21-25, triangles and parallelograms
26-30, area, circumference, pythagorean theorem
31-35, area, circumference and volume
36-40, Pythagorean Theorem and Area
41-45, polygons, exterior angles
46-50, deducing the measure of angles
51-55, Pythagorean Theorem, compass constructions
56-60, compass construction, coordinates
Circles and straight-edges, oh my!
61-65, basic trigonometry
66-70, more trigonometry
71-75, area, chords, tangents of circles