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The base of a triangle is 15cm and he...

The base of a triangle is 15cm and height is 12cm. The height of another triangle of double the area having the base 20cm is (a) 8cm (b) 9cm (c) 12.5cm (d) 18cm

A

8 cm

B

9 cm

C

12.5 cm

D

18 cm

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • The base of a triangle is 15 cm and height is 12 cm. The height of another triangle of double the area having the base 20 cm is :

    A
    9 cm
    B
    18 cm
    C
    8 cm
    D
    12.5 cm

  • The base of a triangle is 14 cm and its height is 8 cm. The area of the triangle is

    A
    `112 cm^(2)`
    B
    `56 cm^(2)`
    C
    `122 cm^(2)`
    D
    `66 cm^(2)`

  • The base of a triangle is 12cm and height is 8cm then area of triangle is

    A
    `48cm^(2)`
    B
    `24cm^(2)`
    C
    `96cm^(2)`
    D
    `56cm^(2)`
    • S CHAND IIT JEE FOUNDATION-PERIMETER AND AREA -QUESTION BANK - 21(B)
    1. The base of a triangle is 15cm and height is 12cm. The height of an...

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    2. If the area of a triangle is 1176 cm2 and base : corresponding alti...

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    3. The hypotenuse of a right-angled isosceles triangle is 5 cm. The ar...

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    4. What is the area of the given figure ? ABCD is a rectangle and BDE is ...

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    5. The ratio of bases of two triangles is x\ : y and that of their ...

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    6. If D and E are the mid points of the sides AB and AC respectively of t...

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    7. The perimeter of a right angled triangle is 60 cm. Its hypotenuse is 2...

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    8. The area of an equilateral triangle is 400sqrt(3) sq.m. Its perimeter ...

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    9. The areas of two equilateral triangles are in the ratio 25:36. Thei...

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    10. From a point within an equilateral triangle, perpendiculars drawn to t...

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    11. The height of an equilateral triangle is 10 cm. Its area is

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    12. An equilateral triangle is described on the diagonal of a square. W...

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    13. A square and an equilateral triangle have the same perimeter. If the d...

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    14. If the side of an equilateral triangle is decreased by 20%, its are...

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    15. If the sides of a triangle are 5 cm, 4 cm and sqrt(41) cm, then the ar...

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    16. The area of a triangle is 216 cm2 and its sides are in the ratio 3:...

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    17. In a triangular field having sides 30 m, 72 m and 78 m, the length of ...

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    18. If every side of an equilateral triangle is doubled, the area of the n...

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    19. If the perimeter of a right angled isosceles triangle is (6 + 3 sqrt(2...

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    20. If A be the area of a right triangle and b one of the sides containing...

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