A right triangle is a triangle in which one angle is a right angle. The relation between the sides and angles of a right triangle is the basis for trigonometry. For practice on this and more, take this quiz.
Questions: 9 | Attempts: 723 | Last updated: Nov 9, 2017
For the right triangle ABC shown below, what is tanA?
Students will test their knowledge on 30-60-90 and 45-45-90 triangles.
Questions: 5 | Attempts: 576 | Last updated: May 1, 2017
Pythagorean Theorem and its converse; Special Right Triangles; Trigonometry
Questions: 15 | Attempts: 355 | Last updated: Jan 24, 2013
Rita drew right triangle GHK on a sheet of notebook paper.
GH = 3 cm (LL)
GH = 5 cm (Hypotenuse)
To the nearest centimeter, what is the perimeter of the triangle?