Edm 1 lines and angles
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Lines and line segments can be measured and named using points labeled with letters. Lines extend indefinitely while line segments have distinct endpoints. Two line segments that intersect form angles, with the point of intersection called the vertex. Angles are named using the vertex letter in the middle. A right angle measures 90 degrees and is formed by perpendicular lines or line segments. Acute angles are less than 90 degrees while obtuse angles are greater than 90 degrees. Parallel lines never intersect even if extended indefinitely.
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Geometry vocabularyCarolinaDay3
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This document defines and provides examples of various geometric shapes, lines, and angles. It includes definitions for point, line, line segment, ray, angle, right angle, acute angle, obtuse angle, vertex, parallel lines, perpendicular lines, intersecting lines, circle, circumference, chord, diameter, radius, triangle, right triangle, obtuse triangle, equilateral triangle, isosceles triangle, scalene triangle, polygon, parallelogram, quadrilateral, rectangle, square, trapezoid, hexagon, octagon, pentagon, cone, crescent, cube, curve, cylinder, ellipse, sphere, semicircle, spiral, and zigzag. Examples are provided to illustrate each term.Point, line, plane. Basics of Geometry in Mathematics 7.ppt
Point, line, plane. Basics of Geometry in Mathematics 7.pptshahanieabbat3
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Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry.
Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry. Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry. Mathematics 7 of Basic of Geometry. Points, Lines, Planes in Geometry. Mathematics 7 of Basic of Geometry. Points, Lines, Lesson 1 undefined terms geometry.pptx
Lesson 1 undefined terms geometry.pptxAnneCanlynManlutac1
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The document introduces some basic concepts in geometry including:
- Points, lines, and planes are the undefined terms that form the foundations of geometry.
- A point has no dimension, a line extends in one dimension, and a plane extends in two dimensions.
- Geometric figures like lines, line segments, rays, and angles are defined based on points.
- Intersections occur when geometric figures share one or more common points, such as two lines intersecting at a single point.Angles.ppt No 2 topic.ppt
Angles.ppt No 2 topic.pptRayRabara
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Corresponding angles: ∠GPB and ∠PQE
Alternate angles: ∠BPQ and ∠DQP
Interior angles: ∠BPQ and ∠EQP whose measures add up to 1800Lines and angles /GEOMETRY
Lines and angles /GEOMETRYindianeducation
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The document defines key geometry concepts like point, line, plane, angle, and different types of angles. It discusses pairs of angles formed when lines intersect or a transversal crosses parallel lines. Specifically:
1) When two lines intersect, pairs of vertically opposite angles are equal.
2) When a transversal crosses parallel lines, corresponding angles are equal, alternate angles are equal, and interior angles on the same side of the transversal are supplementary.
3) The sum of the angles of any triangle is 180 degrees.Edm 1 lines and angles
- 3. Line segments can be measured from beginning to end.ABWe mark a line segment with pointsThose points are labeled with lettersWe can name this line segment either:ABBA
- 4. Lines vs. Line SegmentsLines are different from line segments.We can see the beginning and ending of a line segment.Lines extend on foreverTo show the difference between a line and a line segment we use arrows instead of pointsABWe name a line by showing the arrows:AB
- 5. ABDCTwo line segments are shown hereABCD
- 6. When lines or line segments meet…ABDCThey intersect to form angles…
- 7. The point at the intersection is called the vertex.EADBWhen we name the angle, the vertex must be in the middleC
- 8. The point at the intersection is called the vertex.AEDEADBWhen we name the angle, the vertex must be in the middleorCDEAPoint E, the vertex, is alwaysin the middle
- 9. XNotice any angles?YACPBACXYZPQRJHIQZRBJIName these angles…H
- 10. ABDCWhen 2 line segments meet to form a 90° angle they called perpendicular line segments
- 11. A90°90°90°90°BDCPerpendicular lines intersect to form a 90° angle also referred to as a right angle.You can check if the angle right by holding up a piece of notebook paper.
- 12. PerpendicularA90°BDCWhere do we see right angles?
- 13. PerpendicularABDCWhere do we see right angles?
- 14. Let’s Look at the Strata Center again…Notice many perpendicular lines?Not quite 90°AASmaller than 90° again.BBDDCC
- 15. AABBDDCC
- 16. AABBDDCC
- 17. Acute Angle = Less than 90°AABBDDCCBoth of these angles are smaller than 90°Angles smaller than 90° are called acute
- 18. What about angles larger than 90°?
- 19. What about angles larger than 90°?Angles larger than 90° are called obtuseNotice all of the extra room?
- 20. If you extend these two lines segments will they ever touch?Right, if they did what might happen?
- 21. When two line segments on the same plane never touch they are calledParallelLots of parallel lines
- 22. Do these lines intersect?But, if you extend them outward, would they intersect?Are these lines parallel?No, but actually they are. It’s just the angle of the picture.
- 23. Examples of Parallel Lines