Mathematics

Problem

Diagonal PR of quadrilateral PRSQ divides it into two triangles PQR and PRS. In triangle PQR,

\angle Q

is a right angle, with

PQ = 6\,\text{cm}

and

QR = 8\,\text{cm}

. In triangle PRS, the sides are

PR,\ 7\,\text{cm}

and

9\,\text{cm}

. Calculate the area of quadrilateral PRSQ.