NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 5: Lines And Angles - Multiple Choice QuestionsQuestion 31
Class 7 - Mathematics - Unit 5: Lines And Angles - Multiple Choice Questions
Question. 31
In Fig. 5.26, POQ is a line, then a is equal to
(a)
(a) 35°
(b)
(b) 100°
(c)
(c) 80°
(d)
(d) 135°
Detailed Answer with Explanation:
Angles on a line: 100 + a + 135 = 180.
So, a = 180 − (100 + 135) = 80°.