Parallel Lines Equations Demonstration This resource provides animated
- Slides: 18
Parallel Lines – Equations – Demonstration This resource provides animated demonstrations of the mathematical method. Check animations and delete slides not needed for your class.
What equations could we form using this diagram? How do we know? Because, vertically opposite angles are equal. Because, angles on a straight line total 180° & angles around a point total 360° When we evaluate diagrams, we must give mathematical reasons. Why can’t we assume?
Angles around Parallel Lines Corresponding Angles are equal a b Alternate Angles c are equal e d f Co-Interior Angles = 180° g h
Corresponding Angles are equal Alternate Angles are equal Co-Interior Angles = 180° Because corresponding angles are equal.
Corresponding Angles are equal Alternate Angles are equal Co-Interior Angles = 180° Because alternate angles are equal.
Corresponding Angles are equal Alternate Angles are equal Co-Interior Angles = 180° Because co-interior angles total 180°.
Corresponding Angles are equal Alternate Angles are equal Co-Interior Angles = 180° Because corresponding angles are equal.
Corresponding Angles are equal Alternate Angles are equal Co-Interior Angles = 180° Because alternate angles are equal.
Corresponding Angles are equal Alternate Angles are equal Co-Interior Angles = 180° Because co-interior angles total 180°.
This problem requires 2 angle rules. We can annotate the diagram to help describe the mathematical reasoning. Because corresponding angles are equal. Because angles on a straight line total 180°.
This problem requires 2 angle rules. We can annotate the diagram to help describe the mathematical reasoning. Because vertically opposite angles are equal. Because co-interior angles total 180°.
This problem requires 2 angle rules. We can annotate the diagram to help describe the mathematical reasoning. Because corresponding angles are equal. Because angles around a point total 360°.
How many different ways can you solve this problem?
How many different ways can you solve this problem?
How many different ways can you solve this problem?
Find the value of each variable. You must provide mathematical reasoning.
Find the value of each variable. You must provide mathematical reasoning. Because corresponding angles are equal. Because co-interior angles total 180°.
Questions? Comments? Suggestions? …or have you found a mistake!? Any feedback would be appreciated . Please feel free to email: tom@goteachmaths. co. uk
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