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The sides of a triangle have lengths (in...

The sides of a triangle have lengths (in cm) 10, 6.5 and a, where a is a whole number. The minimum value that a can take is

A

6

B

5

C

3

D

4

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NCERT EXEMPLAR-TRIANGLES-EXERCISE CHOOSE THE CORRECT ONE
  1. The sides of a triangle have lengths (in cm) 10, 6.5 and a, where a is...

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  2. Triangle DEF of Fig. 6.6 is a right triangle with ∠E = 90°. What typ...

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  3. In Fig. 6.7, PQ = PS. The value of x is

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  4. In a right-angled triangle, the angles other than the right angle are

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  5. In an isosceles triangle, one angle is 70°. The other two angles are o...

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  6. In a triangle, one angle is of 90° Then(i) The other two angles are...

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  7. Lengths of sides of a triangle are 3 cm, 4 cm and 5 cm. The triangle i...

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  8. In Fig. 6.8, PB = PD. The value of x is

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  9. In Delta ABC.

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

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

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

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

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

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

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

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  17. Which of the following statements is not correct?

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

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

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

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