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Understanding Geometry: Lines, Angles, Triangles, and Quadrilaterals

Explore essential concepts in geometry with a focus on lines, angles, triangles, and quadrilaterals. Learn to measure and classify angles such as 120°, 125°, 130°, and 135°, and understand the classifications of lines including perpendicular, skew, intersecting, and parallel. Discover that the sum of the angles in a triangle is always 180°, while in a quadrilateral it is 360°. Classify triangles by their angles into acute, right, and obtuse. Finally, identify shapes like rhombus, square, parallelogram, and trapezoid in a comprehensive review of geometric principles.

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Understanding Geometry: Lines, Angles, Triangles, and Quadrilaterals

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Presentation Transcript

  1. Course 1: GeometryLines, Triangles, Quadrilaterals

  2. Measure the angle… • 120° • 125° • 130° • 135°

  3. Classify the lines • Perpendicular • Skew • Intersecting • parallel

  4. Classify the lines • Perpendicular • Skew • Parallel • intersecting

  5. The sum of the angles in a triangle always equal • 90° • 120° • 180° • 360°

  6. Classify the triangle by its angles. • Acute • Right • Obtuse

  7. The perimeter is 46.8.Classify the triangle. • Scalene • Isosceles • equilateral

  8. Give the most descriptive name… • Rhombus • Square • Parallelogram • quadrilateral

  9. Give the mostdescriptive name • Parallelogram • Quadrilateral • Rhombus • Trapezoid

  10. The sum of the angles in a quadrilateral is always… • 90° • 120° • 180° • 360°

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