PPT-1.3 Angles and Their Measures

Warm Up 1 Draw opposite rays and Solve each equation 3 2 x 3 x 4 3 x 5 180   2 Draw and where A B and . 1. Lesson 1-4. Angles. Lesson 1-4: Angles. 2. Angle and Points. An Angle is a figure formed by two rays with a common endpoint, called the . vertex. .. vertex. ray. ray. Angles can have points in the interior, in the exterior or on the angle.. Angle Pair Relationships. Adjacent Angles. Vertical Angles. Linear Pair. Complementary Angles. Supplementary Angles. Adjacent angles are “side by side” and share a common ray.. 45. º. 15. º. These are examples of adjacent angles.. 1. 1.3.2: Constructing Squares Inscribed in Circles. Antonia is making four . corner tables. , one for each of her three sisters and herself. She has one large square piece of wood that she plans to cut into four tabletops. She begins by marking the needed cuts for the tabletops on the square piece of wood. . Section 4.2. Objectives. Find angle measures in triangles.. Key Vocabulary. Corollary. Exterior angles. Interior angles. Theorems. 4.1 Triangle Sum Theorem. Corollary to the Triangle Sum Theorem. 4.2 Exterior Angle Theorem. Terra Alta/East Preston . School. Geometry Unit. Ray. Ray. --part of a line that has one. endpoint and goes on endlessly. in the other direction.. Congruent. Equal in size and shape.. Degrees. The unit used to. 1. Lesson 1-4. Angles. Lesson 1-4: Angles. 2. Angle and Points. An Angle is a figure formed by two rays with a common endpoint, called the . vertex. .. vertex. ray. ray. Angles can have points in the interior, in the exterior or on the angle..  .  . Today’s Objectives:. Students will be able to find and use the sum of the measures of the interior angles of a polygon. . Students will be able to find and use the sum of the measures of the exterior angles of a polygon. . 2.3. 2.4. 2.5. 2.6. $100. $100. $100. $100. $100. $100. $200. $200. $200. $200. $200. $200. Jeopardy!. 2.1 - $100. Draw the next shape in the pattern:. a.). b. .). 2.1 - $200. Find the next term in sequence, and explain your reasoning:. Concept 1. Find the Interior Angles Sum of a Polygon. A. . Find the sum of . the measures . of the interior angles of a convex nonagon.. A nonagon has nine sides. Use the Polygon Interior Angles Sum Theorem to find the sum of its interior angle measures.. and. . 4.2/1-10. Lessons 4.1 and 4.2 . Triangle Sum Properties & Properties of Isosceles Triangles. -. Classify triangles and find measures of their angles.. - Discover the properties of Isosceles Triangles.. 1. 2.. Now put it all together to solve for the missing angle.. Unit 6 – Day 3. Inscribed and Circumscribed. Today’s Objectives. Students will use properties of Central angles and Tangent lines to solve for missing parts. Measure angles with a protractor. Identify and use the angle addition postulate. Warm-Up: . Find the indicated value. AC = 20; AB = _____. A. B. C. x-4. 2x 3. Vocabulary:. Degree:. The most common unit of angle measure.. Angles of Triangles Objectives Find angle measures in triangles. Key Vocabulary Supplementary Angles Complementary Angles Exterior angles Interior angles Additional Vocabulary Theorem - Mathematics. a theoretical proposition, statement, or formula embodying something to be proved from other propositions or formulas. 2. a rule or law, especially one expressed by an equation or formula Maths – Y5 (Angles). Date. : . 11.5.20. Teacher assessment. L.Obj. :. *I . can. use a protractor to measure the size of the acute and obtuse angles.. *I can . calculate. the size of a reflex angle by subtracting the acute/obtuse angle from 360.