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The diagram below is a trapezium MNPQ. Line MQ is parallel to line NP. The length of line MQ=8cm and that of line NR=7cm. The perpendicular line MR
=12cm.
If the area of the trapezium is# 198cm^2#, what is the length of RP?
A. 15cm
B. 18cm
C. 25cm
D. 32cm