In triangle `A B C ,A D` is the altitude from `Adot` If `b > c ,/_C=23^0,a n dA D=(a b c)/(b^2)-c^2,` then `/_B=_____`

In A B C , A D and B E are altitudes. Prove that (a r( D E C))/(a r( A B C))=(D C^2)/(A C^2)

In a triangle A B C , the altitude from A is not less than B C andthe altitude from B is not less than A C . (a)The triangle is right angled (b) isosceles obtuse angled (d) equilateral

In Figure, A M\ _|_B C\ \ a n d\ A N is the bisector of /_Adot If /_B=65^0a n d\ /_C=33^0, find /_M A N

If A B C is an isosceles triangle such that A B=A C and A D is an altitude from A on B C . Prove that (i) /_B=/_C (ii) A D bisects B C (iii) A D bisects /_A

If A B C is an isosceles triangle such that A B=A C and A D is an altitude from A on B C . Prove that (i) /_B=/_C (ii) A D bisects B C (iii) A D bisects /_A

Draw a triangle A B C in which B C=5. 2\ c m ,\ /_B=60^0\ a n d\ /_A=100^0dot

In a triangle A B C , right angled at C ,t a n A+t a n B is equal to a. a+b b. (c^2)/(a b) c. (a^2)/(b c) d. (b^2)/(a c)

In triangle A B C ,D is on A C such that A D=B C' and BD=D C ,/_D B C=2x ,a n d/_B A D=3x , all angles are in degrees, then find the value of xdot

In a Delta A B C ,\ A D is the altitude from A such that A D = 12 cm . B D = 9 cm and D C = 16 cm . Examine if Delta A B C is right angled at A .

If an a triangle A B C , b=3 c, a n d C-B=90^0, then find the value of tanB