# Thread: Properties of Triangles(involving circumscribed, ascribed...)?

1. ## Properties of Triangles(involving circumscribed, ascribed...)?

The triangle ABC is right triangled at A. Ratio of the radius of the circle circumscribed to the radius of the circle escribed to the hypotenuse is √2 : (√3 + √2). Find the angles B & C and the ratio of the two perpendicular sides of the triangle.

(This involves trigonometry, doesn't it? But where? And how?....)

2. Originally Posted by fardeen_gen
The triangle ABC is right triangled at A. Ratio of the radius of the circle circumscribed to the radius of the circle ascribed to the hypotenuse is √2 : (√3 + √2). Find the angles B & C and the ratio of the two perpendicular sides of the triangle.

(This involves trigonometry, doesn't it? But where? And how?....)
Hello,
what is an ascribed circle ? Did you mean inscribed ?

3. Originally Posted by fardeen_gen
The triangle ABC is right triangled at A. Ratio of the radius of the circle circumscribed to the radius of the circle ascribed to the hypotenuse is √2 : (√3 + √2). Find the angles B & C and the ratio of the two perpendicular sides of the triangle.

(This involves trigonometry, doesn't it? But where? And how?....)
it appears that the ratio you have quoted is wrong.

radius of circle escribed to the hypotenuse=
a.(cos(B/2).cos(C/2))/(cos(A/2))

On taking the ratio and equating with the given ratio you will get
2cos(B/2).cos(C/2) = sqrt(3)+sqrt(2) > 2(Never possible)

Would you mind specifying the source of this question

4. @Moo : Forgive the typo. Post edited.(its escribed)

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