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Class 7 - Mathematics - Unit 5: Lines And Angles - Multiple Choice QuestionsQuestion 26
Class 7 - Mathematics - Unit 5: Lines And Angles - Multiple Choice Questions
Question. 26
In Fig. 5.22, the value of a is
(a)
(a) 20°
(b)
(b) 15°
(c)
(c) 5°
(d)
(d) 10°
Detailed Answer with Explanation:
Given angles 90+40+5a=180 ⇒ 5a=50 ⇒ a=10°.