1. Calculate the area (in cm2 upto two decimal places) of the quadrilateral PQRS in which PQ = 30 cm, QR = 24 cm, PR = 18 cm, RS = 30 cm and PS = 44 cm.   Hint Hint       2. Find the area (in cm2) of the trapezoid ABCD in which AB = 11 cm, BC = 25 cm, CD = 4 cm and ∠BAD = ∠ADC = 90°.   Hint       3. Find the area (in cm2) of the quadrilateral PQRS in which PQ = 18 cm, QR = RS = 25 cm, PS = 24 cm and ∠QPS = 90°.   Hint       4. Calculate the area (in cm2) of the quadrilateral EFGH in which EF = 24 cm, GH = 34 cm, EH = 18 cm, FH = 30 cm, ∠FEH = 90° and ∠GFH = 90°.   Hint       5. Calculate the area (in m2) of the farm ABCDE in which AZ = 4 m, BY = 15 m, CX = 16 m, DX = 28 m, EZ = 20 m and XZ = 8 m.   Hint       6. Find the length of RT (in cm) from the figure given that PQ = 7 cm, PS = 8.4 cm, ∠PSQ = 90° and the area of the quadrilateral PQRS is 48.72 cm2. Note that RT is the height of ΔQRS.   Hint       7. Find the area (in cm2) of a trapezoid PQRS in which PQ || RS, PQ = 72 cm, QR = 20 cm, RS = 56 cm and PS = 12 cm.   Hint