In the given figure AB = AC and AD⊥BC. Which criterion can be used to prove congruency of shaded and unshaded triangles. 

One of the base angles of an isosceles triangle is 40^o then  the vertex angle is?

In the given figure AC = AD and B is the midpoint of CD.Which of the following statement is correct? 

The vertex angle of an isosceles triangle is 50^o then the base angles are?

If ∠P = ∠R and PQ is more than 5 cm but less than 6 cm. Length of QR =

In the adjoining figure ΔBAC = 40^o then the value of ∠ABC is

 

In the adjoining figure, ∠ ABC = ∠BDC = 90^o & BD = DC then the value of ∠DBC is

If AB = AC and ∠B = 43^o. Then measure of ∠ACB is 

In an isosceles triangle if a base angle is twice the vertical, calculate the angles of the triangle