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Here are some tips for Quadrilateral Angles, which aligns with Texas state standards:
Quadrilateral Angles
The sum of the angles of a quadrilateral is always 360o.
Example:
Step 1. Add up the given angles.
? =
77 + 105 + 76 = 258Step 2. Subtract the answer from Step 1 from 360.
360 - 258 = 102? = 102 degrees
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