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Altitude AD of an equilateral triangle A...

Altitude AD of an equilateral triangle ABC is a diameter of circle. If circle intersect AB and AC at E and F then `(EF)/(BC) `=

A

`3/4`

B

`4/3`

C

`1/2`

D

None

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The correct Answer is:
A
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AAKASH SERIES-PROPERTIES OF TRIANGLES-LECTURE SHEET EXERCISE - III (Straight Objective Type Question)
  1. If in a triangle PQR , sin P, sin Q, sin R are in A.P., then

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  2. In DeltaABC, AD is the altitude from A, if b gt c, C=23^(0), AD=(abc)/...

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  3. Altitude AD of an equilateral triangle ABC is a diameter of circle. If...

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  4. A triangle is inscribed in a circle. The vertices of the triangle divi...

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  5. The base of a triangle is a and ratio of remaining two sides is r ( r ...

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  6. The area of the right angled triangle in terms of its circum radius an...

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  7. In a triangle ABC, D and E are the mid-points of BC, CA respectively. ...

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  8. If the bisector of the angle lfloor C of a triangle ABC cuts AB in D ...

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  9. Let ABC be an isosceles triangle with base BC. If 'r' is the radius o...

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  10. If a right angled Delta ABC of maximum area is inscribed within a cir...

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  11. P is a point inside a Delta ABC of area K (K gt 0). The lengths of pe...

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  12. If the bisector angle A of the triangle ABC makes an angle theta with ...

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  13. Internal bisector of an angle angle A of triangle ABC meets side BC a...

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  14. In Delta ABC , internal angle bisector of angle A meets side BC in D. ...

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  15. Match the following

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  16. Match the following

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  17. Consider a triangle ABC, where x, y, z are the length of perpendicular...

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  18. Consider a triangle ABC, where x, y, z are the length of perpendicular...

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  19. Consider a triangle ABC, where x, y, z are the length of perpendicular...

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  20. The sides of a Delta^("le") ABC " are " a = 4, b = 5, c = 6 The leng...

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