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Year 8: Geometric Reasoning

Year 8: Geometric Reasoning

Year 8: Geometric Reasoning. Dr J Frost (jfrost@tiffin.kingston.sch.uk) . Objectives: Be able to reason about sides and angles, and find interior/exterior angles of polygons. Last modified: 12 th April 2014. STARTER : Identifying 2D polygons. !.

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678 views • 25 slides
Final Exam Review Answers on last slide

Final Exam Review Answers on last slide

Final Exam Review Answers on last slide. What is the geometric mean of 15 and 8?. 2. Solve for x . 3. If cos P = 0.5, find m P . A. 30 o B. 1 o C. 60 o D. 43 o.

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290 views • 20 slides
Properties of 2-D Shapes

Properties of 2-D Shapes

Properties of 2-D Shapes. Trapezium Rhombus Kite Regular Pentagon Regular Hexagon Regular Octagon Regular Decagon Circle. Equilateral Triangle Isosceles Triangle Right-Angled Triangle Scalene Triangle Quadrilateral Rectangle Square Oblong Parallelogram. Equilateral Triangle.

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742 views • 19 slides
Do Now 4/5/13 Use your reference sheet

Do Now 4/5/13 Use your reference sheet

Find the area of each figure. Round your answer to the nearest tenth. Do Now 4/5/13 Use your reference sheet. Do Now. 1. Find the measures of each of these angles of this regular decagon. 2. What is the formula for finding the area of a polygon? What does each letter stand for?.

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186 views • 11 slides
Chapter 10

Chapter 10

Chapter 10. 10.9 Right Triangles and Regular Polygons. REVIEW. Write out the three TRIG ratios: What is perimeter? What is Area? Area formula for a Triangle: What does regular polygon mean? (ch. 4). Regular _________________. Radius. Center. Apothem. Central Angle.

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283 views • 10 slides
10.3 Areas of Regular Polygons

10.3 Areas of Regular Polygons

10.3 Areas of Regular Polygons. The radius of a regular polygon is the distance from the center to a vertex. The apothem is the perpendicular distance from the center to a side. Finding Angle Measures.

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358 views • 6 slides

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