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The top of a broken tree touches the gro...

The top of a broken tree touches the ground at a distance of 12 m from its base. If the tree is broken at a height of 5 m from the ground then the actual height of the tree is

A

25m

B

13m

C

18m

D

17m

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NCERT EXEMPLAR-TRIANGLES-EXERCISE CHOOSE THE CORRECT ONE
  1. In Fig. 6.8, PB = PD. The value of x is

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  2. In Delta ABC.

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  3. The top of a broken tree touches the ground at a distance of 12 m from...

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  4. The trianlge ABC formed by AB = 5 cm, BC = 8 cm, AC = 4 cm is

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  5. Two trees 7 m and 4 m high stand upright on a ground. If their bases (...

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  6. If in an isosceles triangle, each of the base angles is 40°, then the...

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  7. If two angles of a triangle are 60° each, then the triangle is

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  8. The perimeter of the rectangle whose length is 60 cm and a diagonal is...

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  9. In ∆PQR, if PQ = QR and ∠Q = 100°, then ∠R is equal to

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  10. Which of the following statements is not correct?

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  11. In Figure, BC = CA and ∠A = 40. Then, ∠ACD is equal to

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  12. The length of two sides of a triangle are 7 cm and 9 cm. The length of...

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  13. From Fig. 6.10, the value of x is

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  14. In Fig. 6.11, the value of ∠A + ∠B + ∠C + ∠D + ∠E + ∠F is

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  15. In Fig. 6.12, PQ = PR, RS = RQ and ST || QR. If the exterior angle RPU...

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  16. In Fig. 6.13, ∠BAC = 90°, AD ⊥ BC and ∠BAD = 50°, then ∠ACD is

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  17. If one angle of a triangle is equal to the sum of the other two angles...

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  18. If the exterior angle of a triangle is 130° and its interior opposite...

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  19. If one of the angles of a triangle is 110°, then the angle between the...

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  20. In ∆ABC, AD is the bisector of ∠A meeting BC at D, CF ⊥ AB and E is th...

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