Posted by **Kristle** on Friday, August 17, 2012 at 4:25pm.

The isoceles triangle represents the roof of a birdfeeder. If each base angle is 40°, how many degrees is the angle at the top of the birdfeeder?

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**Ms. Sue**, Friday, August 17, 2012 at 4:32pm
180 - (2 * 40) = ?

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**Jennifer**, Friday, August 17, 2012 at 8:02pm
100

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