[" and "BC" if "/_C=90^(@).AB=29" sais "AC=21" sads and "/_ABC=],[[" (a) "cos^(2)theta+sin^(2)theta," (b) "cos^(2)theta-sin^(2)theta]]

Delta ABC,/_C=90^(@),/_ABC=theta^(@),BC=21 units and AB=29 units.Show that (cos^(2)theta-sin^(2)theta)=(41)/(841)

Draw ABC in which /_C=90^(@) and AC=BC=4cm.

In DeltaABC if /_BAC=90^(@) and AB=AC , then /_ABC is

In /_\\ ABC, /_B = 90^(@) , AB = 5 cm and AC = 13 cm. Then, BC = ?

In Delta ABC , /_ ABC = 90^(@) , If AC = (x + y) and BC = (x - y) , then length of AB is :

In any triangle ABC, if angle C=90^@ , AC=4 unit, BC=3, find AB.

In triangle ABC , /_B=90^@ and AB = BC. If AC = 2sqrt2 , then find AB and BC.

In fig ABC is a right angled triangle in which /_A=90^(@),AB=21 cm and AC=28cm Semi- circles are described on AB,BC and AC as diameters.Find the area of the shaded region

In triangle ABC, /_A=30^@, /_B=90^@, /_C=60^@ . AC=18 . Find AB and AC .