Question

Lines AB & CD are parallel. Find out the alternate, corresponding, co-interior & vertically opposite angles. [4 MARKS]

Answer 1

Alternate angles - 1 Mark
Corresponding angles- 1 Mark
Co-interior angles- 1 Mark
Vertically opposite angles- 1 Mark



$\Rightarrow$ Corresponding Angles

$\angle 1=\angle 5,\angle 3=\angle 7,\angle 2=\angle 6,\angle 4=\angle 8$;

$\Rightarrow$ Vertically Opposite Angles:

$\angle 1=\angle 4,\angle 2=\angle 3,\angle 5=\angle 8,\angle 6=\angle 7$;

$\Rightarrow$ Alternate Interior Angles:

$\angle 3=\angle 6,\angle 4=\angle 5$;

$\Rightarrow$ Alternate Exterior Angles:

$\angle 1=\angle 8,\angle 2=\angle 7$;

$\Rightarrow$ Co-interior Angles:

$\angle 4=\angle 6,\angle 3=\angle 5$.