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DABC is an isosceles triangle in which `A B= A C` . Side BA is produced to D such that `A D = A ...

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Channel: Doubtnut · 2018 · Education

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Question From - NCERT Maths Class 9 Chapter 7 EXERCISE 7.2 Question – 6 TRIANGLES CBSE, RBSE, UP, MP, BIHAR BOARD

QUESTION TEXT:-
DABC is an isosceles triangle in which `A B= A C` . Side BA is produced to D such that `A D = A B` (see Fig. 7.34). Show that `/_B C D` is a right angle.

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Related Questions & Solutions:

1. In an isosceles triangle ABC, with AB = A C` , the bisectors of B and C intersect each other at O. Join A to O. Show that : (i) `O B = O C` (ii) AO bisects A...
https://youtu.be/joPfo7_O-SY

2. In `DeltaA B C` , AD is the perpendicular bisector of BC (see Fig. 7.30). Show that `DeltaA B C` is an isosceles triangle in which `A B\\ =\\ A C` ....
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3. ABC is an isosceles triangle in which altitudes BE and CF are drawn to equal sides AC and AB respectively (see Fig. 7.31). Show that these altitudes are equal....
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4. ABC is a triangle in which altitudes BE and CF to sides AC and AB are equal (see Fig. 7.32). Show that (i) `DeltaA B E~=DeltaA C F` (ii) `A B\\ =\\ A C` , i.e., ABC is an isosceles triangle...
https://youtu.be/i2ZLodW4fO0

5. ABC and DBC are two isosceles triangles on the same base BC (see Fig. 7.33). Show that `/_A B D\\ =/_A C D`...
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• NCERT Solutions for Class 9, Chapter 7 - https://doubtnut.com/ncert-solutions/class-9-maths-chapter-7-triangles-1


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