12. Mary wants to calculate the area of APOR. Q O draw PW so that PW || RQ and PW = V=RQ Odraw PS so that PS IRQ and point S is on RQ draw QV so that point Vis on PR and PV = VR 35° 5 cm What would be the first step in deriving the formula to calculate the area of APOR? Odraw RT so that RT bisects LPRQ and point Tis on PQ 6 cm P R​