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In Figure, /B of A B C is an acute an...

In Figure, `/_B` of ` A B C` is an acute angle and `A D_|_B C` , prove that `A C^2=A B^2+B C^2-2\ B CxxB D`

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In Figure, A B C is an obtuse triangle, obtuse angled at B . If A D_|_C B , prove that A C^2=A B^2+B C^2+2\ B CxxB D .

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RD SHARMA ENGLISH-TRIANGLES-All Questions
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  2. In Figure, A B C is an obtuse triangle, obtuse angled at B . If A D...

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  3. In Figure, /B of A B C is an acute angle and A D|B C , prove that...

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  8. A ladder 25m long reaches a window of a building 20m above the grou...

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  9. The hypotenuse of a right triangle is 6 m more than the twice of the s...

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  10. In Fig. 4.192, A B C is a right triangle right-angled at B . A D...

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  11. The perpendicular A D on the base B C of a triangle A B C interse...

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  12. A B C is a right triangle right-angled at C . Let B C=a ,\ \ C A=b ,...

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  13. Prove that three times the square of any side of an equilateral-tri...

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  15. A B C is an isosceles right triangle right-angled at C . Prove t...

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  16. In an isosceles triangle A B C with A B=A C , B D is perpendicul...

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  17. A B C is a triangle in which A B=A C and D is any point in B C ....

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  18. In A B C , A D is perpendicular to B C . Prove that: A B^2+C D^...

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  19. From a point O in the interior of a A B C , perpendiculars O...

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  20. A point O in the interior of a rectangle A B C D is joined with ...

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