Two triangles are congruent if

The given triangles are congruent by RHS - which of the following is correct?

If∠Y = ∠Z , YZ = 12 cm and perimeter of Δ XYZ = 38 cm. Then length of XZ is

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

The measure of each exterior angle of an equilateral triangle is :

In Δ ABC, ∠B = ∠C . Then value of x is

In ΔABC , ∠A = 100^o and AB = AC , then ∠B =

In the given figure AB = AC = AD , ∠B = 23^o and ∠D = 47^o. Then ∠BCD =

In ΔABC , AC = BC. Then value of x is