Home
Class 12
MATHS
If the lengths of the sides of a triangl...

If the lengths of the sides of a triangle are `3, 5, 7`, then its largest angle of the triangle is

A

`(pi)/(2)`

B

`(5pi)/(6)`

C

`(2pi)/(3)`

D

`(3pi)/(4)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC FUNCTIONS

    TARGET PUBLICATION|Exercise Evaluation Test|34 Videos
  • TRIGONOMETRIC FUNCTIONS

    TARGET PUBLICATION|Exercise Critical Thinking|88 Videos
  • THREE DIMENSIONAL GEOMETRY

    TARGET PUBLICATION|Exercise Evaluation Test|9 Videos
  • VECTORS

    TARGET PUBLICATION|Exercise Evaluation Test|18 Videos

Similar Questions

Explore conceptually related problems

If the sides of a triangle are 3, 5, 7, then

IF the lengths of the side of triangle are 3,5A N D7, then the largest angle of the triangle is pi/2 (b) (5pi)/6 (c) (2pi)/3 (d) (3pi)/4

If the sides of a triangle are 3,5 and 7, then find cos A

If the lengths of the sides of a triangle are in the ratio 4:5:6 and the inradius of the triangle is 3 cm, then the altitude of the triangle corresponding to the largest side as base is :

If the lengths of the sides of a triangle are in AP and the greatest angle is double the smallest, then a ratio of lengths of the sides of this triangle is

The lengths of the sides of a triangle are 3, 5 and 7. Show that the triangle is obtuse-angled.

The sides of a triangle are 3 cm, 5 cm and 7 cm. Find the greatest angle of the triangle.

The lengths of the sides of a triangle are in the ratio 3 : 4 : 5. Find the area of the triangle if its perimeter is 144 cm.

TARGET PUBLICATION-TRIGONOMETRIC FUNCTIONS -Competitive Thinking
  1. If : a = 9, b = 8 and c = x satisfies 3 cos C = 2, then : x =

    Text Solution

    |

  2. In DeltaABC, a=2cm,b=3cmandc=4cm, then angle A is

    Text Solution

    |

  3. If the lengths of the sides of a triangle are 3, 5, 7, then its larges...

    Text Solution

    |

  4. The smallest angle of the DeltaABC, when a=7,b=4sqrt(3)andc=sqrt(13) i...

    Text Solution

    |

  5. In any DeltaABC, prove that ("sin(A-B)")/("sin(A+B)")=((a^(2)-b^(2))...

    Text Solution

    |

  6. In a !ABC , if 1/(b+c)+1/(c+a)=3/(a+b+c), then angleC=

    Text Solution

    |

  7. In a DeltaABC,angleC=(pi)/(3),"then "(3)/(a+b+c)-(1)/(a+c)=

    Text Solution

    |

  8. In triangle ABC, if A+C=2B, then (a+c)/(sqrt(a^(2)-ac+c^(2))) is equal...

    Text Solution

    |

  9. In triangleABC, a(b^(2)+c^(2))cosA+b(c^(2)+a^(2))cosB+c(a^(2)+b^(2))co...

    Text Solution

    |

  10. In a triangle ABC, if (b+c) / 11 = (c+a) / 12 = (a+b) / 13 then cosA...

    Text Solution

    |

  11. In any DeltaABC under usual notation, a(bcosC-c cosB)=

    Text Solution

    |

  12. If in a DeltaABC,a^(2)cos^(2)A-b^(2)-c^(2)=0, then

    Text Solution

    |

  13. The lengths of the sides of a triangle are alpha-beta, alpha+beta and ...

    Text Solution

    |

  14. In a triangle ABC, a= 4, b = 3, angleA= 60°. Then, c is the root of th...

    Text Solution

    |

  15. In triangle ABC,b=sqrt3 c=1 and angleA=30^(@) then the measure of the ...

    Text Solution

    |

  16. If a, b, c are the sides of the triangle ABC such that a^(4) +b^(4) +c...

    Text Solution

    |

  17. In a triangle ABC, if b+c=2aandangleA=60^(@),"then "DeltaABC is

    Text Solution

    |

  18. If in a DeltaABC, sin A: sin C = sin (A - B): sin (B-C), then a^(2),...

    Text Solution

    |

  19. In a triangle ABC If ( 2 cos A)/a + ( cos B)/b + (2 cos C)/c = a/(bc)...

    Text Solution

    |

  20. If 4sinA=4sinB=3sinC" in a "DeltaABC, then cos C =

    Text Solution

    |