Special Right Triangles

Pythagorean Theorem Review

Pythagorean Theorem Practice

Special Right Triangle Investigation: 45-45-90

• Draw an isosceles right triangle with legs

that measure 4 cm.

• Use the Pythagorean Theorem to find the length of the hypotenuse. Leave answer in simplest radical form.

• Repeat the steps above for an isosceles right triangle with legs that measure 7 cm.

• Now draw an isosceles right triangle with a hypotenuse that measures 12 cm.

• Use the Pythagorean Theorem to find the length of the congruent legs. Leave your answer in simplest radical form.

Special Right Triangle Investigation: 30-60-90

• Draw an equilateral triangle with side lengths of 6 cm.

• Draw the perpendicular bisector from the top vertex.

• Label the angle measures.

• Use the Pythagorean Theorem to find the height of the triangle. Leave answer in simplest radical form.

• Repeat the steps above for an equilateral triangle with side lengths of 10 cm.

Videos

• 45-45-90 Triangles

• 30-60-90 Triangles

http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-112s.html

http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-113s.html

Practice

• Khan Academy

• Kuta Software

• IXL

http://www.khanacademy.org/math/geometry/right_triangles_topic/special_right_triangles/e/pythagorean_theorem_2http:/www.khanacademy.org/math/geometry/right_triangles_topic/special_right_triangles/e/pythagorean_theorem_2

http://kutasoftware.com/FreeWorksheets/GeoWorksheets/8-Special%20Right%20Triangles.pdf

http://kutasoftware.com/FreeWorksheets/GeoWorksheets/8-Special%20Right%20Triangles.pdf

http://www.ixl.com/math/geometry/special-right-triangles

Special Right Triangles

Documents

Transcript of Special Right Triangles