Q. 84.9( 8 Votes )
In Fig. 8.123, th A. 20°
B. 30°
C. 45°
D. 60°
Answer :
3x + y + 2x = 180o (Linear pair)
5x + y = 180o (i)
From figure,
y = x (Vertically opposite angles)
Using it in (i), we get
5x + x = 180o
6x = 180o
x = 30o
Thus,
Y = x = 30o
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Introduction to Lines and Angles60 mins
Bonus Questions - 156 mins
Revision on Angle sum Property of Triangles44 mins
Bonus Questions - 257 mins
Quiz | Lines and Angles43 mins
Quiz | Lines and Angles40 mins
Lines and Angles45 mins
Quiz | Lines and Angles45 mins
Smart Revision | Quiz on Lines and Angles46 mins
Quiz | Imp. Qs. on Lines and Angles30 mins
Introduction to Lines and Angles60 minsBonus Questions - 156 minsRevision on Angle sum Property of Triangles44 minsBonus Questions - 257 minsQuiz | Lines and Angles43 minsQuiz | Lines and Angles40 minsLines and Angles45 minsQuiz | Lines and Angles45 minsSmart Revision | Quiz on Lines and Angles46 minsQuiz | Imp. Qs. on Lines and Angles30 minsTry our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
RELATED QUESTIONS :
The complement of
RS Aggarwal & V Aggarwal - MathematicsFill in the blank
RD Sharma - MathematicsIn Fig. 8.122, <i
RD Sharma - MathematicsIn Fig. 8.129, <i
RD Sharma - MathematicsIn the given figu
RS Aggarwal & V Aggarwal - MathematicsThe measure of an
RS Aggarwal & V Aggarwal - MathematicsIn Fig. 8.39,
RD Sharma - MathematicsIn the given figu
RS Aggarwal & V Aggarwal - MathematicsFind the measure
RS Aggarwal & V Aggarwal - Mathematics