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
Line (geometry) wikipedia , lookup
Integer triangle wikipedia , lookup
History of trigonometry wikipedia , lookup
Pythagorean theorem wikipedia , lookup
Multilateration wikipedia , lookup
Rational trigonometry wikipedia , lookup
Perceived visual angle wikipedia , lookup
Trigonometric functions wikipedia , lookup
What vertex is an angle? sides Two different rays with the same endpoint. Rays are the sides, endpoint is the vertex. Named with 3 points or by the vertex. Name the angles you see in the diagram Example C D A E Measuring angles with a protractor Write Different Acute angles: types of either <ABC is 32º or m<ABC=32º (less than 90º) Obtuse (more than 90º Right angle (exactly 90º) Straight (180º) Example Postulate Addition Page 25 in textbook 4: Angle If P is in the interior of <RST, then the measure of <RST is equal to the sum of the measures of <RSP and <PST Example Given the m<GFJ=155º, find m<GFH and m<HFJ Example Given that <VRS is a right angle, find m<VRT and m<TRS Congruent angles 2 angles are congruent if they have the same measure (curved line) A <A B <B Example Identify all pairs of congruent angles If m<P=120º, what is m<N? Angle Bisector A ray that divides an angle into 2 angles that are congruent. WY bisects <XWZ Examples