find the missing angle!. our job is to find the missing measure of angles and it is really easy to...
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What do you need to know?TRANSCRIPT
![Page 1: Find the missing angle!. Our job is to find the missing measure of angles and it is really easy to do!](https://reader036.vdocuments.net/reader036/viewer/2022062302/5a4d1b0e7f8b9ab05998d1cd/html5/thumbnails/1.jpg)
Find the missing angle!
![Page 2: Find the missing angle!. Our job is to find the missing measure of angles and it is really easy to do!](https://reader036.vdocuments.net/reader036/viewer/2022062302/5a4d1b0e7f8b9ab05998d1cd/html5/thumbnails/2.jpg)
Our job is to find the missing measure of angles and it is really easy to do!
![Page 3: Find the missing angle!. Our job is to find the missing measure of angles and it is really easy to do!](https://reader036.vdocuments.net/reader036/viewer/2022062302/5a4d1b0e7f8b9ab05998d1cd/html5/thumbnails/3.jpg)
What do you need to know?
![Page 4: Find the missing angle!. Our job is to find the missing measure of angles and it is really easy to do!](https://reader036.vdocuments.net/reader036/viewer/2022062302/5a4d1b0e7f8b9ab05998d1cd/html5/thumbnails/4.jpg)
An acute angle is 89˚or less.
An obtuse angle is 179˚or less.
A right angle is 90˚
A straight angle is 180 ˚.
![Page 5: Find the missing angle!. Our job is to find the missing measure of angles and it is really easy to do!](https://reader036.vdocuments.net/reader036/viewer/2022062302/5a4d1b0e7f8b9ab05998d1cd/html5/thumbnails/5.jpg)
Angles on a straight line add up to…
![Page 6: Find the missing angle!. Our job is to find the missing measure of angles and it is really easy to do!](https://reader036.vdocuments.net/reader036/viewer/2022062302/5a4d1b0e7f8b9ab05998d1cd/html5/thumbnails/6.jpg)
Yep!
180˚
![Page 7: Find the missing angle!. Our job is to find the missing measure of angles and it is really easy to do!](https://reader036.vdocuments.net/reader036/viewer/2022062302/5a4d1b0e7f8b9ab05998d1cd/html5/thumbnails/7.jpg)
One more thing…
How many of you remember how to add and subtract?
![Page 8: Find the missing angle!. Our job is to find the missing measure of angles and it is really easy to do!](https://reader036.vdocuments.net/reader036/viewer/2022062302/5a4d1b0e7f8b9ab05998d1cd/html5/thumbnails/8.jpg)
You’d better know!
Well, all you need to do is add or subtract to find a
missing angle!
![Page 9: Find the missing angle!. Our job is to find the missing measure of angles and it is really easy to do!](https://reader036.vdocuments.net/reader036/viewer/2022062302/5a4d1b0e7f8b9ab05998d1cd/html5/thumbnails/9.jpg)
Let’s look!
![Page 10: Find the missing angle!. Our job is to find the missing measure of angles and it is really easy to do!](https://reader036.vdocuments.net/reader036/viewer/2022062302/5a4d1b0e7f8b9ab05998d1cd/html5/thumbnails/10.jpg)
http://www.math-aids.com/cgi/angles_supplementary.pl?dec=0&probs=8&language=0&memo=&answer=1&x=115&y=20
![Page 11: Find the missing angle!. Our job is to find the missing measure of angles and it is really easy to do!](https://reader036.vdocuments.net/reader036/viewer/2022062302/5a4d1b0e7f8b9ab05998d1cd/html5/thumbnails/11.jpg)
How does this work, you ask?
Well, remember….a straight angle is 180˚, so look at the measure of the angle that is shown and subtract it from
180˚!
![Page 12: Find the missing angle!. Our job is to find the missing measure of angles and it is really easy to do!](https://reader036.vdocuments.net/reader036/viewer/2022062302/5a4d1b0e7f8b9ab05998d1cd/html5/thumbnails/12.jpg)
Now let’s practice!
http://www.math-aids.com/cgi/angles_supplementary.pl?dec=0&probs=8&language=0&memo=&answer=1&x=115&y=20