Which property is illustrated?
15 + ( 5 + 7 ) = ( 15 + 5) + 7
a. distributive property
b. identity property of addition
c. commutative property of addition
d. associative property of addition

Fill in the blank 1. a rhombus is a rectangle a) always b) sometimes c) never 2. a square is a quadrilateral a) always b) sometimes c) never 3. a trapezoid is a kite a) always b) sometimes c) never 4. a quadrilateral is a kite a) always b) sometimes c) never 5. a square is a rhombus a) always b) sometimes c) never 6. a parallelogram is a rectangle a) always b) sometimes c) never