1) In triangle ABC, if AB=BC and ∠B = 70°, ∠A will be:
2) For two triangles, if two angles and the included side of one triangle are equal to two angles and the included side of another triangle. Then the congruency rule is:
3) A triangle in which two sides are equal is called:
4) The angles opposite to equal sides of a triangle are:
5) If ABC is an equilateral triangle, then each angle equals to: