IDNLearn.com provides a collaborative environment for finding and sharing knowledge. Join our community to receive prompt, thorough responses from knowledgeable experts.

Quadrilateral abcd has vertices at a(0, 6), b(4, -1), c(-4, 0) and d(-8, 7). prove that:

(a) abcd is a rhombus using the distance formula
b) the diagonals of abcd are perpendicular