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If D ,\ E and F are the mid-points of...

If `D ,\ E` and `F` are the mid-points of the sides of a ` A B C` , the ratio of the areas of the triangles `D E F` and `D C E` is (a) 1.1:1 (b) 1:1.1 (c) 1:1 (d) 0.9:1

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If D,E and F are the mid-points of the sides of a /_ABC, the ratio of the areas of the triangles DEF and DCE is (a) 1.1:1 (b) 1:1.1 (c) 1:1 (d) 0.9:1

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A B C D is a square. E is the mid-point of B C and F is the mid-point of C D . The ratio of the area of triangle A E F to the area of the square A B C D is (a) 1 : 2 (b) 1 : 3 (c) 1 : 4 (d) 3 : 8

ABC and BDE are two equilateral triangles such that D is the mid-point of BC .The ratio of the areas of the triangles ABC and BDE is 2:1(b)1:2(c)4:1(d)1:4

ABCD is a rectangle and E and F are the mid-points of AD and DC respectively.Then the ratio of the areas of EDF and AEFC would be (a) 1:2 (b) 1:3 (c) 1:4 (d) 2:3

A B C D is a trapezium with parallel sides A B=a\ a n d\ D C=bdot If E\ a n d\ F are mid-points of non-parallel sides A D\ a n d\ B C respectively, then the ratio of areas of quadrilaterals A B F E\ a n d\ E F C D is: a : b (b) (a+3b):(3a+b) (3a+b):(a+3b) (d) (3a+b):(3a+b)

What will be the ratio between the area of a rectangle and the area of a triangle with one of the sides of the rectangle as base and a vertex on the opposite side of the rectangle? (a) 1 : 2 (b) 2 : 1 (c) 3 : 1 (d) Data inadequate (e) None of these

If D ,E ,F are the mid-points of the sides B C ,C Aa n dA B respectively of a triangle A B C , prove by vector method that A r e aof D E F=1/4(a r e aof A B C)dot

D ,\ E ,\ F are the mid-point of the sides B C ,\ C A\ a n d\ A B respectively of A B Cdot Then D E F is congruent to triangle. A B C (b) AEF (c) B F D ,\ C D E (d) A F E ,\ B F D ,\ C D E

RD SHARMA-TRIANGLES-All Questions
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  2. If A B C and D E F are similar triangles such that /A=47o and /E=83...

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  3. If D ,\ E and F are the mid-points of the sides of a A B C , the r...

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  4. In a A B C , /A=90o , A B=5c m and A C=12 c m . If A D|B C , then A D...

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  5. In an equilateral triangle A B C , if A D|B C , then 2\ A B^2=3\ A ...

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  6. If A B C is an equilateral triangle such that A D|B C , then A D^2...

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  7. In a A B C , perpendicular A D from A on B C meets B C at D . If B...

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  8. In a A B C , point D is on side A B and point E is on side A C , such...

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  9. In a A B C , A D is the bisector of /B A C . If A B=6c m , A C=5c ...

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  10. In a A B C , A D is the bisector of /B A C . If A B=8c m , B D=6c ...

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  11. A B C D is a trapezium such that B C || A D and A B=4c m . If the ...

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  12. If A B C is an isosceles triangle and D is a point on B C such t...

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  13. A B C is a right triangle right-angled at A and A D|B C . Then, (B ...

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  14. If E is a point on side C A of an equilateral triangle A B C suc...

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  15. If in A B C and D E F , (A B)/(D E)=(B C)/(F D) , then A B C ~ D E...

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  16. If in two triangles A B C and D E F , (A B)/(D E)=(B C)/(F E)=(C A)...

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  17. A B C D E F , a r( A B C)=9c m^2 , a r( D E F)=16 c m^2 . If B C=2. ...

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  18. The length of the hypotenuse of an isosceles right triangle whose o...

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  19. A man goes 24m due west and then 7m due north. How far is he from t...

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  20. A B C D E F . If B C=3c m , E F=4c m and a r( A B C)=54 c m^2 , then...

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