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The lengths of the diagonals of a rhombu...

The lengths of the diagonals of a rhombus are 10 cm and 8.2 cm .Its area will be :

A

`192 cm^2`

B

`64 cm^2`

C

`96 cm^2`

D

`80 cm^2`

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MODERN PUBLICATION-AREA OF PARALLELOGRAMS AND TRIANGLES-EXERCISE
  1. The figure obtained by joining the midpoints of the adjacent sides of ...

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  2. In trapezium ABCD AB||DC. If ar (AOD) = 15 cm^2 then ar (BOC) is :

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  3. The lengths of the diagonals of a rhombus are 10 cm and 8.2 cm .Its ar...

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  4. In a quad. ABCD it is given that BD = 16 cm. If AL bot BD and CM bot B...

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  5. In a ||gm ABCD, if P and Q are mid-points of AB and CD respectively an...

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  6. The median of a triangle divides it into two

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  7. The mid-point of the sides of a triangle along with any of the vertice...

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  8. Two parallelograms are on equal bases andbetween the same parallels. T...

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  9. ABCD is a quadrilateral whose diagonal AC divides it into two parts, e...

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  10. If a triangle and a parallelogram are on the same base and between sam...

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  11. triangleABC~ trianglePQR. If ar(ABC) = 2.25 m^2. ar(PQR) = 6.25m^2,PQ ...

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  12. If triangleABC~triangleDEF, BC = 4 cm, EF = 5 cm and ar(triangleABC) =...

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  13. The area of two similar triangles ABC and PQR are 25 cm^2, 49cm^2. If ...

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  14. What is the area of an equilateral triangle whose sides is 'a'?

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  15. Tick the correct answer and justify : Sides of two similar triangles a...

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  16. In the figure, find the area of ||gm.

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  17. Two parallelograms are on equal bases andbetween the same parallels. T...

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  18. In figure. D and E are the mid-points o sides. AB, AC respectively ...

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  19. ABCD is a trapezium in which AB||DC, DC = 30 cm and AB = 50 cm. If X a...

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  20. AP||BQ||CR. Prove that ar(AQC) = ar(PBR)

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