Lesson 12.4
Presentation
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Mathematics
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3rd Grade
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Practice Problem
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Medium
Standards-aligned
Robert Vizzachero
Used 13+ times
FREE Resource
12 Slides • 6 Questions
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Lesson 12.4
How can I describe quadrilaterals?
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Intersecting lines
Lines that meet or cross
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Intersecting Lines
Intersecting lines don't need to cross. They just need to meet. Here is another example:
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Perpendicular Lines
Lines that cross or meet at a right angle.
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Perpendicular Lines
Don't have to cross - just meet.
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Parallel Lines
Two lines that always stay the same distance apart.
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Multiple Choice
What type of lines are these?
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Multiple Choice
What type of lines are these?
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Multiple Choice
What type of lines are these?
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Lines in Polygons
The sides of polygons have these three types of lines
Shapes will have more than one type.
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Rhombus
The red lines are parallel
They will never touch
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Triangle
The red lines are intersecting. They do not form a right angle.
Note - some triangles DO have a right angle.
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Trapezoid
The red lines are perpendicular.
You can see the square that is formed in the corner
The red lines are also intersecting.
Notice that there are two parallel lines. The black line on the left and the red line on the right.
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Multiple Choice
The green lines in this hexagon are:
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Multiple Select
Which two terms describes the green lines in this rectangle.
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Multiple Choice
The green lines in this pentagon are:
Lesson 12.4
How can I describe quadrilaterals?
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