[" 14."AD" is an altitude of "a Delta ABC" and "AD" is "12cm],[BD=9cm" and "DC=16cm" long respectively.Prove "],[" that the angle "BAC" is a right angle."]

The altitude AD of a Delta ABC, in which /_A obtuse and,AD=10cm* If BD=10cm and CD=10sqrt(3)cm, determine /_A

ABC is a triangle and D is a point on the side BC. If BC = 12 cm, BD = 9 cm and angle ADC = angle BAC, then the length of AC is equal to

In a Delta ABC , Adis the bisector of angle BAC . If AB=8 cm, BD=6 cm and DC=3 cm. The length of the side AC is

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

G is the centroid of Delta ABC . The medians AD and BE intersect at right angles . If the lengths of AD and BE are 9 cm and 12 cm respectively , then the length of AB (in cm ) is ?

In a DeltaABC , AC = 12 cm, AB = 16 cm and AD is the bisector of angleA . If BD = 4 cm, then what is DC equal to ?

O is the centroid of triangle ABC . The medians AD and BE intersect at right angles. If the lenghts of AD and BE are 9 cm and 12 cm respectively : then the length of AB (in cm) is