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A B C D is a rectangle and A B E is a...

`A B C D` is a rectangle and `A B E` is a triangle whose vertex `E` lies on `C D` . If `A B=5c m` and the area of the triangle is 10 sq. cm, then the perimeter of the rectangle is (a) 14 cm (b) 15 cm (c) 18 cm (d) 20 cm

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RS AGGARWAL-AREA-All Questions
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  7. What is the area of /\P Q R, shown in Fig.? (a) 2sqrt(154) sq. cm (b) ...

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  8. Out of a square of side 8 cm, a triangle is drawn with base as one ...

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  9. Consider the given figure (FIGURE) If the areas of the triangles...

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  12. The three sides of a triangular field are 20 metres, 21 metres and ...

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  13. The perimeter of an isosceles triangle is equal to 14 cm and the la...

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  14. The sides of a triangle are in the ratio of 1/2:1/3:1/4. If the perime...

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  15. The sides of a triangle are consecutive integers. The perimeter of ...

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  16. The area of a triangle is 216 cm2 and its sides are in the ratio 3:...

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  17. If three sides of a triangle are 6 cm, 8 cm and 10 cm, then the alt...

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  18. The sides of a triangle are 3 cm, 4 cm and 5 cm. The area (in cm2) ...

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  19. If D ,E and F are the mid-points of the sides of a /\A B C, the ratio ...

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