Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Multilateration wikipedia , lookup
Technical drawing wikipedia , lookup
Rational trigonometry wikipedia , lookup
Euler angles wikipedia , lookup
Perceived visual angle wikipedia , lookup
Trigonometric functions wikipedia , lookup
History of trigonometry wikipedia , lookup
Pythagorean theorem wikipedia , lookup
WARM UP Determine whether the following are a stretch or shrink a. (x,y) → (5x,y) b. 1 y) 3 (x,y) → (x, ANNOUNCEMENTS Quiz Friday Homework and Warm ups due Friday Test Tuesday SIMILAR POLYGONS Two figures that share: Congruent corresponding angles Proportional corresponding sides WRITING SIMILARITY STATEMENTS Corresponding Angles must be put in the same order! ∆ABC~∆DEF ∆ABC~∆FDE - WRONG THREE POSTULATE THAT PROVE TRIANGLES SIMILAR 1. AA (Angle Angle) 2. SSS (Side Side Side) 3. SAS (Side Angle Side) AA (ANGLE ANGLE) If two angles of one triangle are congruent to two angles of another triangle, the triangles are similar AA PRACTICE SSS (SIDE SIDE SIDE) If the three sets of corresponding sides of two triangles are in proportion, the triangles are similar SSS EXAMPLE Are the two triangles similar? 16 4 20 5 7 28 SAS (SIDE ANGLE SIDE) If an angle of one triangle is congruent to the corresponding angle of another triangle and the lengths of the sides including these angles are in proportion, the triangles are similar. WHICH TRIANGLES ARE SIMILAR? WHY? HOMEWORK Pg. 395-396 #1-4, 7, 8, 16-18, 23