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In Fig. 21, A B C D is a parallelogram, ...

In Fig. 21, `A B C D` is a parallelogram, `D L_|_A Bdot` If `A B=20\ c m` , `A D=13\ c m` and area of the parallelogram is 100 `c m^2` find `A Ldot`

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RD SHARMA-MENSURATION-1-All Questions
  1. In Fig.20, A B C D is a parallelogram, D L|A B and D M|B Cdot If A B=1...

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  2. The longer side of a parallelogram is 54 cm and the corresponding a...

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  3. In Fig. 21, A B C D is a parallelogram, D L|A Bdot If A B=20\ c m , A ...

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  4. In Fig. 21, if A B=35\ c m , A D=20\ c m and area of the parallelogram...

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  5. The adjacent sides of a parallelogram are 10 m and 8 m. If the dist...

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  6. The base of a parallelogram is twice its height. If its area is 512...

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  7. Find the area of a rhombus having each side equal to 15 cm and one ...

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  8. Find the area of a rhombus, each side of which measures 20 cm and o...

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  9. The length of a side of a square field is 4 m. What will be the alt...

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  10. Two sides of a parallelogram are 20 cm and 25 cm. If the altitude c...

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  11. The base and corresponding altitude of a parallelogram are 10 cm an...

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  12. A floral design on a floor is made up of 16 tiles which are triangula...

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  13. Find the area in square centimetres of the triangle whose base and ...

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  14. Find the altitude of a triangle whose base is 20 cm and area is 150...

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  15. The area of a right triangle is 50\ m^2 . If one of the legs is 20 m, ...

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  16. Find the area of an isosceles right triangle. If one of the equal s...

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  17. The area of a triangle is equal to that of a square whose each side...

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  18. A field in the form of a parallelogram has one of its diagonals 42 m...

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  19. Find the area of an equilateral triangle having each side 4 cm.

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  20. Find the area of an isosceles triangle having the base 6 cm and the...

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