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The side of a triangle are 22 cm, 28 cm,...

The side of a triangle are 22 cm, 28 cm, and 36 cm So, find the area of a the circumscribed circle.

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ARIHANT MATHS-PROPERTIES AND SOLUTION OF TRIANGLES -Exercise For Sesssion 3
  1. The side of a triangle are 22 cm, 28 cm, and 36 cm So, find the area o...

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  2. If the lengths of the side of a triangle are 3,4 and 5 units, then fin...

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  3. In an equliateral triangle of side 2sqrt3 cm. The find circum-radius.

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  4. If 8R^(2)=a^(2) +b^(2) +c^(2). then prove that the Delta is right angl...

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  5. In a Delta ABC, show that 2R^(2) sin A sin B sin C=Delta.

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  6. In a Delta ABC, show that (a cos A+b cos B+ c cos C)/(a+b+c)= (r )/(R...

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  7. If the sides of a triangles are 3:7:8, then ratio R:r

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  8. In an equilateral triangle show that the in-radius and the circum-radi...

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  9. In any DeltaABC, find sin A+sin B+ sin C.

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  10. In any Delta ABC, show that cos A+ cos B+ cos C = (1+ (r )/(R )).

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  11. Prove that (r(1) -r)/(a) + (r(2) -r)/(b) = (c)/(r(3))

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  12. show that r(2)r(3) +r(3) r(1)+ r (1) r(2)=s^(2)

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  13. Show that (r(1)+ r (2))(r (2)+ r (3)) (r(3)+r(1))=4Rs^(2)

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  14. If r(1) +r(2)+ r = r(3), then show that Delta is right angled.

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  15. In an equilateral triangle, the in-radius, circum-radius and one of th...

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  16. Show that ((1)/(r (1))+ (1)/(r(2)))((1)/(r(2))+(1)/(r (1)))((1)/(r (3)...

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  17. The exradii r(1), r(2), r(3)" of "DeltaABC and in HP, show that a,b an...

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  18. In a DeltaABC, show that r(1)* r(2)* r(3)*r=Delta^(2).

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  19. If the angle opf a triangle are in the ratio 1:2:3, then show that the...

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  20. Show that, 4 R r cos ""A/2cos ""B/2 cos ""C/2 =Delta

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