Exterior Angle Property
Exterior Angle Property
Exterior Angle: If the side BC of a triangle ABC is produced to form ray BD, then is called an exterior angle of
at C and is denoted by ext.
Theorem: If a side of a triangle is produced, the exterior angle so formed is equal to the sum of the two interior opposite angles.
|
Given: A triangle ABC. D is a point on BC produced, forming an exterior angle To Prove: i.e., Proof: In triangle ABC, we have Also, Find (i) and (ii), we have Hence, i.e. |
 |
Illustration: in the figure PQ || RS. Find angle QOR.
|
Solution: Extend PQ to N [ Alternate interior angles are equal PN || RS and RO is the transversal ]
Now, In
|
|
Find the values of x and y in the following figure
| |||
| Right Option : B | |||
| View Explanation | |||
Find the measure of angle
| |||
| Right Option : B | |||
| View Explanation | |||
A triangle can have __________ exterior angles. | |||
| Right Option : C | |||
| View Explanation | |||
Students / Parents Reviews [10]
It was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
