6.3. Parallelograms http://www.ck12.org
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- Ifm^6 S= 143 ◦in parallelogramPQRS, find the other three angles.
- IfAB⊥BCin parallelogramABCD, find the measure of all four angles.
- Ifm^6 F=x◦in parallelogramEF GH, find expressions for the other three angles in terms ofx.
For questions 4-11, find the measures of the variable(s). All the figures below are parallelograms.