Angles Formed by Parallel Lines Cut by a Transversal

Alternate exterior. 2x+19°=x+23°. -x -x x+19°=23°. -19°-19° x=4°. Page 11. Page 12. x. 68°. Corresponding m ACB=m EFC. 68°=m EFC. Page 13. Linear Pair...

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alternate exterior angles

vertical angles

Alternate interior, m 1=m 2

Alternate exterior 2x+19°=x+23° -x -x x+19°=23° -19°-19° x=4°

68° x

Corresponding m ACB=m EFC 68°=m EFC

x+24°

2x=164° 2 2 x=82° x-8°

m ACH=x+24° m ACH=82+24° m ACH=106°

Linear Pair m ACH+m DCH=180° (x+24°)+(x-8°)=180° x+24°+x-8°=180 2x+16°=180° -16° -16°