Home
Class 9
MATHS
In the picture A B C is an equilateral t...

In the picture A B C is an equilateral triangle. BC=5cm. Find the area of triangle BCD.

Promotional Banner

Topper's Solved these Questions

  • DECIMAL POINTS

    V PUBLICATION|Exercise QUESTION BANK|25 Videos

  • Parallel Lines

    V PUBLICATION|Exercise QUESTION BANK|49 Videos

Similar Questions

Explore conceptually related problems

In the figure, A B C D is a trapezium. Diagonal A C and B D intersect at M. Area of triangle ABC is 24 cm^2 and area of triangle AMB is 10cm^2. a) Find the area of triangle BMC. b) How much is the area of triangle AMD? Write reason.

In the figure ABCD is a trapezium. Diagonal AC and BD intersect at O. Area of triangle A B C is 24 cm^2 and area of triangle AOB is 10 sq.cm. a) Find the area of triangle BOC. b) How much is the area of triangle AOD? Write reason.

In the figure, B P: P Q: Q C=1: 2: 1. Area of triangle APQ is 8 sq.cm. (a) Find the area of triangle A B P. b) Find the area of triangle ABC.

Area of triangle BPC is 10 sq.cm. a) Find the area of triangle A B C. b) Find the area of rectangleABCD.

A square is drawn on the altitude of an equilateral triangle of side 4 cm. a) What is the altitude of the triangle? b) What is the area and perimeter of the square?

What is the length of one side of a equilateral triangle with height 3 cm. Find the area [Find in cm sqrt3=1.73 ].

In the figure given below P, Q, R are the mid points of the sides of AB, BC and AC of the triangle ABC . The area of the triangle ABC is 60 sq.cm. find the area of the parallelogram APQR.

In the figure ABCD is trapezium. Diagonals meet at the point E. Area of triangle CED = 16 cm^2 , Area of triangle AED is 36 cm^2 . Find the area of triangle AED , triangle BEC

The picture shows an equilateral triangle cut into halves by a line through a vertex. How much less than the perimeter of the whole triangle is this? .

In the figure, line AB is parallel to CD. AB=5 cm , AC=4 cm, angle CAB= 90^circ . a) Calculate the area of triangle ABC. b) How much is the area of triangle ABD? Write reason.

V PUBLICATION-New Numbers-QUESTION BANK
  1. Using sqrt6= 2.449, calculate sqrt(2/3)+sqrt(3/2) correct to three dec...

    Text Solution

    |

  2. Compute √12 - √3 upto two decimals.

    Text Solution

    |

  3. Given sqrt2 = 1.414, find the approximate value of 3/sqrt2 to three de...

    Text Solution

    |

  4. Using sqrtx2 \approx 1.414, \sqrtx3=1.732 . Calculate the value of the...

    Text Solution

    |

  5. In the picture A B C is an equilateral triangle. BC=5cm. Find the area...

    Text Solution

    |

  6. In the figure, angle B=120circ, angle A=15^circ, A B=10 centimeters. A...

    Text Solution

    |

  7. a) sqrt3 sqrt3= b) What is the product of(sqrt3+sqrt2 andsqrt3-sqrt2)...

    Text Solution

    |

  8. In the figure, angle A=30^circ,angle B=90^circ, A C=16cm (a) What is ...

    Text Solution

    |

  9. a)sqrt7sqrt7= b) sqrt7+sqrt7=

    Text Solution

    |

  10. a) Find the area and perimeter of the rectangle in the figure. b) What...

    Text Solution

    |

  11. (sqrtx3+sqrtx2)(\sqrt{3}-sqrtx2)=(sqrtx3)^2-(sqrtx2)^2=3-2=1Using this...

    Text Solution

    |

  12. In the figure, angle B=angle AC D=90^circ a) What is the length of A...

    Text Solution

    |

  13. Compute the following (14+sqrt3)(14-sqrt3)

    Text Solution

    |

  14. Find the value of √243 + √300

    Text Solution

    |

  15. If √3 =1.732 and √5 =2.236, compute √5 +√3 correct two decimal places...

    Text Solution

    |

  16. Calculate.the perimeter and area of the triangle in the picture.

    Text Solution

    |

  17. Compute √12 - √3 upto two decimals.

    Text Solution

    |

  18. In the figure, angle B=120 ∘ angle A=15 ∘ , AB=10 centimetres. Also di...

    Text Solution

    |

  19. The pictures shows a tangram of 7 pieces made by cutting a square of s...

    Text Solution

    |

  20. Draw an equilateral triangle with side sqrtx10 centimetres.

    Text Solution

    |