Find an unknown angle — page 1
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Practice question

  1. A 120° angle is split into adjacent, non-overlapping parts. One is 45°. Find the other. Write an equation with x. Equation: ___ x = ___ degrees

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Common Core connections

Source labels: 4.MD.C.7. Review the learning goals below to check the fit for your class.

  • 4.MD.C.7 — Use angle addition to find unknown angles

Bring it into your lesson

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