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In a right-angled triangle, the product ...

In a right-angled triangle, the product of two sides is equal to half of the square of the third side i.e., hypotenuse. One of the acute angle must be

A

`60^@`

B

`30^@`

C

`45^@`

D

`15^@`

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CHAMPION PUBLICATION-2013 TIER-II PAPER(21)-EXERCISE
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  2. All sides of a quadrilateral ABCD touch a circle. If AB = 6 cm, BC = 7...

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  6. A point D is taken from the side BC of a right-angled triangle ABC, wh...

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  7. Suppose a point C is on straight line AB and two circles of diameter A...

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  8. In an isosceles right angle triangle ABC (at B) perpendicular are dra...

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  9. Each interior angle of a regular octagon in radians is- एक सम अधष्टभ...

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  10. D and E are two points on the sides AC and BC respectively of DeltaABC...

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  11. D is a point on side BC of a Triangle ABC such that AD bot BC and E...

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  12. If cos theta + sin theta = sqrt2cos theta," then " cos theta -sin thet...

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  13. If xsin45^(@)=y"cosec " 30^(@), then (x^(4))/(y^(4)) is equal to

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  14. The angle of elevation of a tower from a distance 50m from its foot is...

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  15. ABCD is a rectangle where ratio of the length of AB and BC is 3 : 2. I...

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  16. (sin A)/(1+cos A)+(sin A)/(1-cos A) is (0^@ < A<90^@) ? (0^@ < A<90^...

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  17. If rsin theta=1, r cos theta= sqrt3 then the value of (sqrt3 tan theta...

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  18. In a frequency distribution, ogives are graphical representation of- ...

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  19. The average Kharif production of the given years is- दिए गए वर्षों म...

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