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In A B C , if A D|B C and A D^2=B DxxD ...

In ` A B C` , if `A D_|_B C` and `A D^2=B DxxD C` , prove that `/_B A C=90o` .

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NAGEEN PRAKASHAN-TRIANGLES -Exercise 6b
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  2. In the given figure , if XY||BC, find the length of XY.

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  3. In the given figure if triangleEDC~triangleEBA, angleBEC = 115^(@) and...

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  4. in the given figure angleCAB=90^(@) and AD bot BC. if AC= 75 cm , AB= ...

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  5. the perimeters of two similar triangles are 40 cm and 30 cm respectiv...

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  6. The diagonal BD of a parallelogram ABCD intersects the segment AE at t...

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  7. Prove that the line segments joining the mid-points of the sides of a ...

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  8. In a triangleABC P and Q are points on AB and AC respectively and PQ||...

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  9. In Fig. 4.122, A D and B E are respectively perpendiculars to B ...

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  10. In A B C , if A D|B C and A D^2=B DxxD C , prove that /B A C=90o .

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  11. If one diagonal of a trapezium divides the other diagonal in the ratio...

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  12. One angle of a triangle is equal to one angle of another triangle and ...

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  13. In the adjoining figure two medians AD and BE of a triangleABC meet ea...

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  14. In an isosceles A B C , the base A B is produced both the ways ...

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  15. Two poles of height 'a' metres and 'b' meters are 'p' meters apart. Pr...

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  16. E si a point on side AD produced of a parallelogram ABCD and BE inters...

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  17. In a right angled with sides a and b and hypotenuse c, the altitude dr...

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  18. in the given figure, if triangleABE cong triangleACD prove that triang...

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  19. A man wishes to determine the height of a tall building . In the middl...

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  20. In trianglePQR, angleP=72^(@), M is the mid point of side QR, and L an...

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