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BD is one of the diagonals of a quad. AB...

BD is one of the diagonals of a quad. ABCD. If `ALbotBD and CMbotBD`, show that
`ar("quad. ABCD")=(1)/(2)xxBDxx(AL + CM)`.

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RS AGGARWAL-AREAS OF PARALLELOGRAMS AND TRIANGLES -Exercise 11
  1. Calculate the area of quad. ABCD, given in til (ii) Calculate the area...

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  2. In the given figure, ABCD is a trapezium such that AL bot DC and BM bo...

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  3. BD is one of the diagonals of a quad. ABCD. If ALbotBD and CMbotBD, sh...

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  4. ABCD is a parallelogram and X is the mid-point of AB. (AXCD)= 24 cm^(2...

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  5. In the adjoining figure, ABCD is a quadrilateral in which diag. BD = 1...

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  6. P and Q are any two points lying on the sides DC and AD respectively ...

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  7. In the adjoining figure, MNPQ and ABPQ are parallelogram and T is any ...

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  8. Assertion (A) : In a trapezium ABCD, we have AB ||DC and the diagonals...

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  9. In figure, if DEabs()BC, then find the ratio of ar (DeltaADE) and ar(D...

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  10. Show that a median of a triangle divides it into two triangles of e...

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  11. A diagonal of a parallelogram divides it into two triangles of equal a...

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  12. In Fig. 9.24, ABC and ABD are two triangles on the same base AB. If l...

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  13. The points D and E are respectively located on AB and AC on the sides ...

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  14. O is the any point on diagonal PR of parallelogram PQRS. Prove that Ar...

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  15. In the adjoining figure, the diagonals AC and BD of a quadrilateral AB...

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  16. The vertex A of triangle ABC is joined to a point D on the side BC. Th...

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  17. D is the midpoint of side BC of triangleABC and E is the midpoint of ...

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  18. In trapezium ABCD, AB || DC and L is the mid-point of BC. Through L, a...

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  19. In the adjoining figure, ABCD is a quadrilateral. A line through D, p...

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  20. In the adjoining figure, triangle ABC and triangleDBC are on the same ...

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