In a` 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` A B C` is right angled at `A` .

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 .

In a ABC,AD is the altitude from A such that AD=12cm.BD=9cm and DC=16 cm.Examine if ABC is right angled at A

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

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 . The triangle is right angled (b) isosceles obtuse angled (d) equilateral

In a A B C ,\ \ B D and C E are the altitudes. Prove that A D B and A E C are similar. Is C D B ~ B E C ?

A D\ a n d\ B E are respectively altitudes of A B C such that A E=B D . Prove that A D=B E .

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 /_\ A B C , A D is the bisector of /_A , meeting side B C at D . (i) If AB=10 cm , AC=14 cm and BC=6cm , find B D and D C (ii) If A C=4. 2 c m , D C=6c m and B C=10 c m , find A B . (iii) If A B=5. 6 c m , A C=6c m and D C=3c m , find B C .

In triangle A B C is right-angled at B . Given that A B=9cm ,\ A C=15 cm calculate B C .