CBSE Class 9 Answered
find x
![question image](http://images.topperlearning.com/topper/new-ate/top_mob1593419472280942346d5e92997-f22b-4f3a-ba80-98fd62a355da.jpg)
Asked by pranita.krmis | 29 Jun, 2020, 14:01: PM
In the figure, AB ll ED
angle ABC = 30o and angle EDC = 70o
Draw a perpendicular line joining B and D.
So, CBD forms a triangle
![angle A B D equals 90 degree
rightwards double arrow angle A B C plus angle C B D equals 90 degree
rightwards double arrow 30 degree plus angle C B D equals 90 degree
rightwards double arrow angle C B D equals 60 degree
A l s o comma space angle E D C equals 90 degree
rightwards double arrow angle E D C plus angle C D B equals 90 degree
rightwards double arrow 70 degree plus angle C D B equals 90 degree
rightwards double arrow angle C D B equals 20 degree
I n space triangle B C D comma space
angle B C D plus angle C B D plus angle C D B equals 180 degree
rightwards double arrow angle B C D equals 180 degree minus 80 degree equals 100 degree
rightwards double arrow x equals 360 degree minus 100 degree equals 260 degree](https://images.topperlearning.com/topper/tinymce/cache/aef005227556ba01f6018cec2842e791.png)
Answered by Renu Varma | 01 Jul, 2020, 13:36: PM
Application Videos
Concept Videos
CBSE 9 - Maths
Asked by Ravindrachavan292 | 08 Jul, 2019, 08:35: AM
CBSE 9 - Maths
Asked by Girishdhawan | 01 Jul, 2018, 15:19: PM
CBSE 9 - Maths
Asked by Topperlearning User | 04 Jun, 2014, 13:23: PM