Circles

Presentation

•

Mathematics

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10th Grade

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Practice Problem

•

Medium

Anna Cockrum

Used 27+ times

FREE Resource

11 Slides • 2 Questions

Things you need for today:

A working mind (I know that's a lot to ask at this point in the year, but try your best)
your Hold My Thinking sheet

Think about a circle again
This time, try to move away from the dictionary definition you've grown to attached to
Make this circle more personal to you

Sketch your circle as you imagine it

Do this on your Hold My Thinking sheet

Make a straight line through your circle

Anywhere through your circle

Erase only the parts of the line that stick out from your circle

Keep any parts touching the outline or what's inside.

Just erase the sticky-outy bits

The segment you just drew is called a chord

Define chord for yourself on your sheet

Multiple Select

Based on your definition of chord, which of the following are examples of chords?

Did these examples follow your definition of what a chord is?

If "yes", that's great
If "not yet", then sketch an example of one off to the side and see how you can expand your definition and understanding

Open Ended

What are at least 2 things you notice about the image of your circle now? [remember that hitting the 'enter' key submits your answer rather than adding a new line of text]

Type response here

Here is an example of an arc, define this word for yourself.

A central angle is created using two radii, draw an example of this for yourself

Does your central angle look similar to any of these?

Show answer

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