Write the phrase using numbers. y is less than 4

Number Form:
Expression or Equation:

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?

Which two undefined geometric terms always describe figures with no beginning or end?

If you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood?