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Bob placed three regular pentagons together at a vertex, thinking he might be able to form a tessellation. However, they left a gap. What is the number of degrees in the measure indicated?

 

 Jul 19, 2022
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the pentagon has equal angles so the inside angle is 108 to get  360 the circle angle inside 108+108=216 360-216=144

 Jul 19, 2022

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