class 7 Maths Chapter-5 line and angles
Exercise-5.1 Question 1:Find the complement of each of the following angles:Answer:The sum of the measures of complementary angles is 90º.(i) 20°Complement = 90° − 20°= 70°(ii) 63°Complement = 90° − 63°= 27°(iii) 57°Complement = 90° − 57°= 33° Question 2:Find the supplement of each of the following angles:Answer:The sum of the measures of supplementary anglesis …