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Laabri

Triangles

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Last updated almost 7 years ago
29 Nsɛmmisa

We just began working on triangles. Soon, we're going to blend triangles, circles, and quadrilaterals together in a way that nobody ever thought was possible...! To do that though, we're going to need to know all the lingo and be able to work with triangles in different forms.

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If you'd like to review what complementary, supplementary, or vertical mean, watch the following videos. If not, move on to the lessons.

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Do NOT skip the following videos! They include information we have not covered in class that is important! Watch them and take notes on anything you find interesting/relevant/important!

Only watch the first 60 seconds of the following video!

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Warm Up with the following lessons. Start with this one:

Naming angles

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Get hot with the following lesson:

Identifying supplementary, complementary, and vertical angles

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Get hot hot hot with the following lessons (don't burn yourself!):

Complementary and Supplementary Angles: Part 1

Complementary and Supplementary Angles: Part 2

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How's your vertical braaaa? Let's find out:

Vertical Angles

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Hmmmmm something is missing up there.... I don't know where to find that puzzle piece, but I do know how to find missing angles! Let's go find em!

Missing Angles

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Keep looking!!

Calculating Missing Angles

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Let's construct our own triangles now. You'll be needing the protractor soon enough. But until then, try these:

Constructing Triangles

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Who's ready for some trivia?? YOU!!

Triangle Trivia Part 1

Triangle Trivia Part 2

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Just write the number, no symbols

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Just write the number, no symbols

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Using a protractor, construct an iscoceles triangle that has a 44 degree angle and a 68 degree angle. Make sure to label the angles and side lengths. Take a picture of your triangle and submit it below.

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Just write the letters, uppercase.

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Write your answer as follows: x=#,y=# no spaces

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Just write the number, no symbols

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Write yes or no only

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Angle JKL should be 65 degrees, not 55 degrees

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Write your answer in terms of y. Example: y = something something something

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Just write the number, no symbols

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Just write the number, no symbols

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Just write the number, no symbols

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Just write the number, no symbols