Please! It's due in 20mins!

Which statement best describes a square? a. a special rectangle that has four right angles b. a special trapezoid that has four sides of equal length c. a special rectangle that has four sides of equal length d. a special trapezoid that has four right angles

Which math sentence can be used to determine if the triangle is a right triangle?

Describe the relationship between the angles of similar triangles and the sides of similar triangles