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In Fig. 6.11, the value of ∠A + ∠B + ∠C ...

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

A

`190^@`

B

`540^@`

C

`360^@`

D

`180^@`

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NCERT EXEMPLAR-TRIANGLES-EXERCISE CHOOSE THE CORRECT ONE
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  2. From Fig. 6.10, the value of x is

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

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

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

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

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

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

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

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  10. In ∆PQR, if ∠ P = 60°, and ∠ Q = 40°, then the exterior angle formed b...

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  11. Which of the following triplets cannot be the angles of a triangle?

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  12. Which of the following can be the length of the third side of a triang...

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  13. How many altitudes does a triangle have?

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  14. If we join a vertex to a point on opposite side which divides that sid...

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  15. The measures of angle x and angle y in Fig.6.14 are respectively

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  16. If length of two sides of a triangle are 6 cm and 10 cm, then the leng...

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  17. In a right-angled triangle ABC, if angle B = 90°, BC = 3 cm and AC = 5...

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  18. In a right-angled triangle ABC, if angle B = 90°, then which of the f...

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  19. Which of the following figures will have it’s altitude outside the tri...

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  20. In Fig.6.16 IF AB||CD, then

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