What is the third angle for the triangle where angle1 = 45° and angle2 = 45°?

If a triangle has an angle of 90 degrees, what is it called?

The diagonals of a rhombus are 16 cm and 12 cm, in length. The side of the rhombus in length is:

The height of an equilateral triangle of side 5 cm is

True or False: A triangle can be constructed with the sides 2, 2, and 10.