Home
Class 10
MATHS
In Fig. 10.98, a circle touches the s...

In Fig. 10.98, a circle touches the side `D F` of ` E D F` at `H` and touches `E D` and `E F` produced at `K` and `M` respectively. If `E K=9c m` , then the perimeter of ` E D F` is (FIGURE) (a) 18cm (b) 13.5cm (c) 12cm (d) 9cm

Promotional Banner

Topper's Solved these Questions

  • ARITHMETIC PROGRESSIONS

    RD SHARMA|Exercise All Questions|329 Videos

  • CONSTRUCTIONS

    RD SHARMA|Exercise All Questions|21 Videos

Similar Questions

Explore conceptually related problems

A circle touches the side BC of Delta ABC at F and touches AB and AC at D and E, respectively. If AD = 8 cm, then find the perimeter of Delta ABC .

A circle touches the side BC of DeltaABC at D and AB and aC are produced to E and F, respectively. If AB=10cm, AC=8.6 cm and BC=6.4 cm then BE=?

If A B C D E F such that D E=3c m , E F=2c m , D F=2. 5 c m , B C=4c m , then perimeter of A B C is (a) 18cm (b) 20cm (c) 12cm (d) 15cm

In Fig. 10.87, two equal circles touch each other at T , if Q P=4. 5 c m , then Q R= (FIGURE) (a) 9cm (b) 18cm (c) 15cm (d) 13.5cm

A B C D E F , a r( A B C)=9c m^2 , a r( D E F)=16 c m^2 . If B C=2. 1 c m , then the measure of E F is 2. 8 c m (b) 4. 2 c m (c) 2. 5 c m (d) 4. 1 c m

A B C is a triangle in which D is the mid-point of B C ,\ E\ a n d\ F are mid-points of D C\ a n d\ A E respectively. If area of A B C is 16\ c m^2, find the area of D E F

In A B C ,\ D ,\ E\ a n d\ F are, respectively, the mid-points of B C ,\ C A\ a n d\ A B . If the lengths of side A B ,\ B C\ a n d\ C A are 7cm, 8cm, and 9cm, respectively, find the perimeter of D E F

In the figure, the circles with centeres A and B touch each other at E. Line l is a common tangent which touches the circles at C and D respectively. Find the length of seg CD, if the radii of the circle are 4 cm, 6 cm.

In Fig. 71, if A B C D\ a n d\ C D E F ,\ find \ /_A C E

RD SHARMA-CIRCLES-All Questions
  1. If P T is tangent drawn from a point P to a circle touching it a...

    Text Solution

    |

  2. In the adjacent figure, if A B=12 c m ,\ \ B C=8c m and A C=10 c m ...

    Text Solution

    |

  3. In Fig. 10.83, if A P=P B , then (FIGURE) A C=A B (b) A C=B C (c) A...

    Text Solution

    |

  4. In Fig. 10.84, if A P=10 c m , then B P= (FIGURE) sqrt(91)c m (b) s...

    Text Solution

    |

  5. In Fig. 10.86, if quadrilateral P Q R S circumscribes a circle, ...

    Text Solution

    |

  6. In Fig. 10.87, two equal circles touch each other at T , if Q P=4. ...

    Text Solution

    |

  7. In Fig. 10.88, A P B is a tangent to a circle with centre O at p...

    Text Solution

    |

  8. In Fig. 10.90, P R= (FIGURE) (a) 20cm (b) 26cm (c) 24cm (d) 28cm

    Text Solution

    |

  9. In Fig. 10.93, there are two concentric circles with centre O . P R...

    Text Solution

    |

  10. In Fig. 10.94, if A B=8c m and P E=3c m , then A E= (FIGURE) (a) ...

    Text Solution

    |

  11. In Fig. 10.95, P Q and P R are tangents drawn from P to a circle...

    Text Solution

    |

  12. In Fig. 10.96, if T P and T Q are tangents drawn from an externa...

    Text Solution

    |

  13. In Fig. 10.97, the sides A B ,\ B C and C A of triangle A B C , ...

    Text Solution

    |

  14. In Fig. 10.98, a circle touches the side D F of E D F at H and tou...

    Text Solution

    |

  15. In Fig. 10.99, D E and D F are tangents from an external point D...

    Text Solution

    |

  16. In a right triangle A B C , right angled at B ,\ B C=12 c m and ...

    Text Solution

    |

  17. Two circles touch each other externally at P . A B is a common t...

    Text Solution

    |

  18. In Fig. 10.101, P Q and P R are two tangents to a circle with ce...

    Text Solution

    |

  19. In Fig. 10.102, Q R is a common tangent to the given circles touchi...

    Text Solution

    |

  20. In Fig. 10.103, a quadrilateral A B C D is drawn to circumscribe...

    Text Solution

    |