Q. 164.6( 7 Votes )

For what value of x will the lines I and m be parallel to each other?

(i).

(ii)

Answer :

(i) x=30


Given l||m


Therefore,


3x – 20° = 2x + 10° [Crossponding angles]


3x – 2x = 10° + 20°


x = 30°


(ii) x=25


Given l||m


Therefore,


(3x + 5)° + 4x° = 180°


7x + 5° = 180°


7x = 175°


x = 25°


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Quiz | Lines and AnglesQuiz | Lines and AnglesQuiz | Lines and Angles40 mins
Quiz | Lines and AnglesQuiz | Lines and AnglesQuiz | Lines and Angles43 mins
NCERT | Intersecting and Non Intersecting lines)NCERT | Intersecting and Non Intersecting lines)NCERT | Intersecting and Non Intersecting lines)41 mins
NCERT | Discussion on Lines And AnglesNCERT | Discussion on Lines And AnglesNCERT | Discussion on Lines And Angles45 mins
NCERT | Angle Sum PropertyNCERT | Angle Sum PropertyNCERT | Angle Sum Property44 mins
Smart Revision | All Types of AnglesSmart Revision | All Types of AnglesSmart Revision | All Types of Angles31 mins
Bonus Questions on Lines and AnglesBonus Questions on Lines and AnglesBonus Questions on Lines and Angles42 mins
NCERT | Lines and Angles Part - 1NCERT | Lines and Angles Part - 1NCERT | Lines and Angles Part - 142 mins
Lines and AnglesLines and AnglesLines and Angles45 mins
Quiz | Lines and AnglesQuiz | Lines and AnglesQuiz | Lines and Angles45 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses