Seudónimo Seudónimo 02-05-2017 Mathematics contestada Which figure must be a rhombus? A. a parallelogram with four congruent sides B. a parallelogram with four congruent angles C. a quadrilateral with four right angles D. a quadrilateral with congruent diagonals Marissa wrote this equation for the area of a rectangle. 18.3w = 433.71. What is the width (w) of this rectangle? A. 415.4 units B. 7936.9 units C. 452.0 units D. 23.7 units