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Class 7 - Mathematics - Unit 5: Lines And Angles - Multiple Choice QuestionsQuestion 16
Class 7 - Mathematics - Unit 5: Lines And Angles - Multiple Choice Questions
Question. 16
In Fig. 5.15, the value of y is
(a)
(a) 30°
(b)
(b) 15°
(c)
(c) 20°
(d)
(d) 22.5°
Detailed Answer with Explanation:
Angles on straight line: 6y+2y+y = 180 ⇒ 9y=180 ⇒ y=20°.