Lesson 2. Line Segments and Angles. Measuring Line Segments. The instrument used to measure a line segment is a scaled straightedge like a ruler or meter stick. Units used for the length of a line segment include inches (in), feet (ft), centimeters (cm), and meters (m).

ByWarm Up. Problem of the Day. Lesson Presentation. Lesson Quizzes. Warm Up Solve. 1. 72 + 18 + x = 180 2. 80 + 70 + x = 180 3. x + 42 + 90 = 180 4. 120 + x + 32 = 180. x = 90. x = 30. x = 48. x = 28. Problem of the Day

By12-4. Inscribed Angles. Warm Up. Lesson Presentation. Lesson Quiz. Holt McDougal Geometry. Holt Geometry. Warm Up Find each value. 1. m BCA 2. t Solve for x . 3. 58 – x = 4 ( x + 7) 4. 2 ( x – 8) = 8. 63.5°. 116.5°. 6. 12. Objectives.

ByPolygons and Area. § 10.1 Naming Polygons. § 10.2 Diagonals and Angle Measure. § 10.3 Areas of Polygons. § 10.4 Areas of Triangles and Trapezoids. § 10.5 Areas of Regular Polygons. § 10.6 Symmetry. § 10.7 Tessellations. Vocabulary. Naming Polygons . What You'll Learn.

ByTessellations. 12-6. Warm Up. Lesson Presentation. Lesson Quiz. Holt Geometry. Warm Up Find the sum of the interior angle measures of each polygon. 1. quadrilateral. 360°. 2. octagon. 1080°. Find the interior angle measure of each regular polygon. 90°. 3. square. 4. pentagon.

By8.4 Trigonometry. Agenda: 8.4 Day 1 Notes. Example 1: Given the triangle, label the sides (opposite, adjacent, hypotenuse) according to the specified angle. Angle S. Example 1: Given the triangle, label the sides (opposite, adjacent, hypotenuse) according to the specified angle. b. Angle P.

By5.1 Vocabulary. acute triangle equiangular triangle right triangle obtuse triangle equilateral triangle isosceles triangle scalene triangle. auxiliary line corollary interior exterior interior angle exterior angle remote interior angle. C. A.

ByRight Triangle Trigonometry. Section 6.5. Pythagorean Theorem. Recall that a right triangle has a 90 ° angle as one of its angles. The side that is opposite the 90 ° angle is called the hypotenuse .

By7.1 Ratio and Proportion. Geometry Ms. Kelly. Objectives. 7.1 Ratio and Proportion. 7.2 Properties of Proportions. Solve for an unknown term in a given proportion. Express a _____ in simplest form. Real Life Applications.

By3. 1. 2. 4. 5. 90°. 40°. 40°. 50 °. 130°. 90°. 50 °. Just for fun… do these (on the back of your warm up). Name 2 pair of alternate interior angles <5 & <3 and <4 & <1 2. What is the sum of m<1 + m<2 + m<3? 180 ° If m<4 = 65 ° and m<5 = 50°, what is m<2? 65°.

ByRight Triangle Trigonometry. Obea Rizzi B. Omboy. Pythagorean Theorem. Recall that a right triangle has a 90 ° angle as one of its angles. The side that is opposite the 90 ° angle is called the hypotenuse .

ByJeopardy. Triangle Sum Conjecture. Isosceles Triangles. Is it a triangle?. Greatest to Least. Congruent Triangles. Proofs. Game Board. Greatest to Least. Congruent Triangles. Triangle Sum Conjecture. Isosceles Triangles. Is it a triangle?. Proofs. $200. $500. $100. $300. $400.

ByTrigonometric Ratios. A RATIO is a comparison of two numbers. For example; boys to girls cats : dogs right : wrong. In Trigonometry, the comparison is between sides of a triangle . We need to do some housekeeping before we can proceed….

By4-2. Classifying Triangles. Holt Geometry. Warm Up. Lesson Presentation. Lesson Quiz. Holt McDougal Geometry. Warm Up Classify each angle as acute, obtuse, or right. 1. 2. 3. 4. If the perimeter is 47, find x and the lengths of the three sides. right. acute. obtuse.

ByRight Triangle Trigonometry. Section 6.5. Pythagorean Theorem. Recall that a right triangle has a 90 ° angle as one of its angles. The side that is opposite the 90 ° angle is called the hypotenuse .

By1 and 4 are a linear pair. 4 and 5 are also a linear pair. Identify all of the linear pairs and all of the vertical angles in the figure at the right. ANSWER. 1 and 5 are vertical angles. ANSWER. EXAMPLE 4. Identify angle pairs. SOLUTION.

ByEXAMPLE 1. Identify quadrilaterals. Quadrilateral ABCD has at least one pair of opposite angles congruent. What types of quadrilaterals meet this condition?. SOLUTION. There are many possibilities.

ByPolygons. By Beth Roberts. Polygons. A polygon is a figure that is made up of only line segments. It is a closed figure and its sides intersect in exactly two places.

By8.1 Ratio and Proportion. Geometry Mrs. Spitz Spring 2005. Find and simplify the ratio of two numbers. Use proportions to solve real-life problems, such as computing the width of a painting. Chapter 8 Definitions Ch.8 Postulates/ Theorems Pp. 461-462 #1-50 all

ByObjectives/Assignment. Prove the Pythagorean Theorem Use the Pythagorean Theorem to solve real-life problems such as determining how far a ladder will reach. Assignment: pp. 538-539 #1-31 all Assignment due today : 9.1 pp. 531-532 #1-34 all. History Lesson.

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