Which property is illustrated by the following statement? 9a (bc) = (9a)bc
O A. Commutative Property of Addition
O B. Inverse Property of Multiplication
O C. Commutative Property of Multiplication
O D. Associative Property of Multiplication

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .