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If the bisectors of the base angles of a...

If the bisectors of the base angles of a triangle enclose an angle of `135^0,` prove that the triangle is a right triangle.

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To prove that triangle ABC is a right triangle given that the bisectors of the base angles B and C enclose an angle of 135 degrees, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Angles**: Let \( \angle ABC = B \), \( \angle ACB = C \), and \( \angle BAC = A \). The angle bisectors of angles B and C meet at point D, forming \( \angle BDC = 135^\circ \). 2. **Use the Angle Sum Property**: ...
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RD SHARMA ENGLISH-CONGRUENT TRIANGLE -All Questions
  1. In Figure, the side B C of A B C is produced to form ray B D as shown....

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  2. In a triangle the greater angle has the longer side opposite to it.

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  3. If the bisectors of the base angles of a triangle enclose an angle ...

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  4. If two sides of a triangle are unequal, the longer side has greater...

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  5. The bisectors of base angles of a triangle cannot enclose a right a...

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  6. ABCD is a square, X and Y are points on sides AD a...

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  7. In figure, if P Q|P S ,P Q|| S R ,/S Q R=28^0 and /Q R T=65^0, then fi...

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  8. If perpendiculars from any point with an angle on its arms are cong...

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  9. In figure, if lines P Q and R S intersect at a point T such that P R T...

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  10. A B C is a triangle is which B E and C F are, respectively, the perpen...

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  11. Sides B C ,C A and BA of a triangle A B C are produced to D ,Q ,P resp...

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  12. A B C is a triangle and D is the mid-point of B C . The perpendiculars...

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  13. The side B C of a triangleA B C is produced on both sides. Show that t...

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  14. P is a point equidistant from two lines l and m intersecting at a poin...

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  15. If two parallel lines are intersected by a transversal, prove that ...

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  16. If A B C is an isosceles triangle such that A B=A C and A D is an alti...

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  17. If PS is the bisector of /Q P R and P T|Q R . Show that /T P S=1/2(/Q...

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  18. Of all the line segments that can be drawn to a given line, from a ...

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  19. A triangle A B C is right angled at A. AL is drawn perpendicular to B...

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  20. The sum of any two sides of a triangle is greater than the third sid...

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