Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
1.7k views
in Lines and Angles by (48.4k points)
closed by

Find the value of unknown angles in the following figures :

1 Answer

+1 vote
by (49.3k points)
selected by
 
Best answer

(i) ∵∠x+ 125°= 180°

∠x = 180°- 125° = 55°

Two lines intersect each other

∴ ∠y = 125° (vertically opposite angles)

(ii) ∠x + 20° = 180°

[ ∠x = 180° – 20°= 160°]

(iii) Two lines intersect each other

∠x = 55° (vertically opposite angles)

∵ ∠x + ∠z = 180° (x, z is a linear pair whose sum is 180°)

55° + ∠z = 180°

⇒ ∠z = 180°- 55°= 125°

Clearly ∠y + ∠x = 90°

∠y + 55° = 90°

∠y = 90° – 55° = 35°

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

...