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Using converse of Basic Proportionality ...

Using converse of Basic Proportionality theorem prove that the line joining the mid-points of any two sides of a triangle is parallel to the third side. (Recall that you have done it in Class IX).

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Using Theorem 6.2, prove that the line joining the mid-points of any two sides of a triangle is parallel to the third side. (Recall that you have done it in Class IX).

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Sum of any two sides of a triangle is greater than the third side.

Using Basic Proportionality theorem, prove thata line drawn through the mid-point of one side of a triangle parallel to another side bisects the third side. (Recall that you have proved it in class IX).

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MBD-TRIANGLES-EXERCISE
  1. Using converse of Basic Proportionality theorem prove that the line jo...

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  2. Fill in the blank ,- The polygons of same number of sides are similar:...

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  3. Fill in the blank ,- The polygons of same number of sides are similar:...

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  4. Fill in the blank ,- All regular polygons of same number of sides are…...

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  5. Fill in the blank ,- A polygon of 10 sides is ………… to a polygon of 11 ...

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  6. In figure, DE is parallel to BC. If (AD)/(DB)=2/3 and AC:= 18 cm find ...

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  7. Given angleABC and DE || BC AD = 4x - 3, DB = 3x - 1 AE = 8x - 7, EC =...

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  8. M and N are points on the sides PQ and PR respectively of anglePQR. If...

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  9. In figure AB = 6 cm, AH = 8 cm, CK = 2.4 cm, BC || HK, calculate AK. ...

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  10. Points P, Q and R lie on sides BC, CA and AB respectively of triangle ...

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  11. Infigure, if AB II DC,find the value of x . .

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  12. In the given figure, DE || BC. If AD = 3.6 cm, AB = 9 cm and AE = 2.4 ...

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  13. In the given figure, DE || BC. If (AD)/(DB)=3/5 AC = 5.6 cm, find AE....

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  14. In the given figure, DE || BC. If AD = x cm, DB = (x - 2) cm, AE = (x...

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  15. In the given figure, AB || PQ and AC || PR. Prove that BC || QR. .

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  16. Examine each pair of triangles in figures and state which pair of tria...

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  17. Examine each pair of triangles in figures and state which pair of tria...

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  18. Examine each pair of triangles in figures and state which pair of tria...

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  19. In fig., angleA=angle1 Prove that triangleBDE~triangleBCA . .

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  20. In figure AB bot BC and DE bot AC. Prove that triangleABC ~ triangleAE...

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  21. A vertical stick 20 cm long casts a shadow 6 cm long on the ground. At...

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