Lessons for G.SRT.C.8
Special right trianglesThe isosceles right triangle, whose hypotenuse is a leg times the square root of two.Lesson
Solving right trianglesChoosing the ratio that links the known angle, the known side and the side being found.Lesson
Inverse trigonometric ratiosFrom a ratio back to the angle.Lesson
Using the Pythagorean theoremFinding a missing distance in a real figure by spotting a right triangle inside it.Lesson
The Pythagorean theoremIn a right triangle, the squares on the legs add to the square on the hypotenuse.Lesson
Trig values of the special right trianglesReading exact sine, cosine and tangent values off the thirty sixty ninety and forty five triangles.Lesson
Angles of elevation and depressionUsing sightings of the same object from two places to find a height or distance neither one gives alone.Lesson
Printable Worksheets
Special right triangles worksheet (PDF)Printable worksheet with answer keyPreview
Solving right triangles worksheet (PDF)Printable worksheet with answer keyPreview
Inverse trigonometric ratios worksheet (PDF)Printable worksheet with answer keyPreview
Using the Pythagorean theorem worksheet (PDF)Printable worksheet with answer keyPreview
The Pythagorean theorem worksheet (PDF)Printable worksheet with answer keyPreview
Trig values of the special right triangles worksheet (PDF)Printable worksheet with answer keyPreview
Angles of elevation and depression worksheet (PDF)Printable worksheet with answer keyPreview