Question

1) Fill in the blanks.
(i) If a ray stands on a line, the sum of adjacent angles so formed is _________ .
(ii) If the sum of two angles is 180° then each is the __________ of the other .
(iii) The angles are equal and complement of each other. Each angle measures _______ .
(iv) If two parallel lines are intersected by a transversal, then a pair of corresponding angles are ____________ .
(v) Two lines that are cut by a transversal are parallel if, co-interior angles are _______ .​

Answer 1

i)180.

ii)supplementary.

iii)90.

iv)congruent.

v)co-interior angles