NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 5: Lines And Angles - Multiple Choice QuestionsQuestion 15
Class 7 - Mathematics - Unit 5: Lines And Angles - Multiple Choice Questions
Question. 15
The measure of an angle which is four times its supplement is
(a)
(a) 36°
(b)
(b) 144°
(c)
(c) 16°
(d)
(d) 64°
Detailed Answer with Explanation:
Let angle = x, supplement = 180 − x.
Given: x = 4(180 − x).
So, 5x = 720 ⇒ x = 144°.