nCERT 7 Maths lines and angles

Lines and Angles Exercise 5.1 1). Find the complement of each of the following angles: i) 200 ii). 630 iii). 570 Solution: i) 200 let the complementary of 200 be x.  x + 20 = 90 x = 90 – 20 x = 70   ii). 630 let the complementary of 630 be x. x […]