[" 4.In Fig."6.59,ABC" is a triangle in which "/_ABC<90^(@)" and "AD perp BC" .Prom "],[AC^(2)=AB^(2)+BC^(2)-2BC*BD]

In Fig.6.59, ABC is a triangle in which angleABC<90^@ and AD_|_BC .Prove that AC^2=AB^2+BC^2-2BC.BD .

In fig., ABC is a triangle in which angleABC .

In Fig. 1, ABC is a triangle in which AB = BC and /_B = 40^@ , then x=

In the fig. ABC is a triangle in which AB=AC side BA is produced to D such that AB=AD prove that angle=BCD=90^@

In Delta ABC , AD is the perpendicular bisector of BC (see Fig. 7.30). Show that Delta ABC is an isosceles triangle in which A B\ =\ A C .

In Delta ABC , AD is the perpendicular bisector of BC (see Fig. 7.30). Show that Delta ABC is an isosceles triangle in which A B\ =\ A C .

In Delta ABC , AD is the perpendicular bisector of BC. Show that Delta ABC is an isoscelss tringle in which AB = AC.

∆ABC is an isosceles triangle in which /_C = 90° . If AC = 6 cm , Then AB is

In Fig.10.64,BC is a tangent to the circle with centre O.OE bisects AP.Prove that Delta ABC-Delta AEO

ABC is a triangle in which altitudes BE and CF to sides AC and AB are equal (See Fig. ). Show that AB = AC or DeltaABC is an isosceles triangle.