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Parallel Lines : Corresponding Angles. E. A. B. Line AB | | Line CD Transversal Line EF crosses lines AB and CD at intersection points P and Q respectively. P. Q. C. F. D. EPB and Angle EFD are corresponding angles. Other pairs of corresponding angles are :
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Parallel Lines : Corresponding Angles E A B Line AB| | Line CD Transversal Line EF crosses lines AB and CD at intersection points P and Q respectively. P Q C F D EPB and Angle EFDare corresponding angles. Other pairs of corresponding angles are : FQD & FPB, APE & CFE, CQF & APF Corresponding Angles formed by a transversal cutting two parallel lines are CONGRUENT!
Parallel Lines : Interior Angles E A B Line AB| | Line CD Transversal Line EF crosses lines AB and CD at intersection points P and Q respectively. P Q C F D • BPFand Angle DQE are internal angles. • Other pair of internal angles is: • APF& CQE • Internal Angles formed by a transversal cutting two parallel lines are SUPPLEMENTARY ANGLES of each other!
Parallel Lines : Exterior Angles E A B Line AB| | Line CD Transversal Line EF crosses lines AB and CD at intersection points P and Q respectively. P Q C F D • APE and Angle CQF are Exterior angles. • Other pair of Exterior angles is: • EPB & FQD • Exterior Angles formed by a transversal cutting two parallel lines are SUPPLEMENTARY ANGLES of each other!
Parallel Lines : Alternate Angles E A B Line AB| | Line CD Transversal Line EF crosses lines AB and CD at intersection points P and Q respectively. P Q C F D • APFand Angle EFDare Alternate angles. • Other pair of Alternate angles is: • BPF& CQE • Alternate Angles formed by a transversal cutting two parallel lines are CONGRUENT!
Parallel Lines : Alternate Exterior Angles E A B Line AB| | Line CD Transversal Line EF crosses lines AB and CD at intersection points P and Q respectively. P Q C F D • APE and Angle FQD are External Alternate angles. • Other pair of External Alternate angles is: • EPB & CQF • External Alternate Angles formed by a transversal cutting two parallel lines are CONGRUENT!