In the diagram, PQUV, PQTU, QRTU and QRST are parallelogr...
In the diagram, PQUV, PQTU, QRTU and QRST are parallelograms. |UV| = 4.8cm and the perpendicular distance between PR and VS is 5cm. Calculate the area of quadrilateral PRSV
A.
96cm2
B.
72cm2
C.
60cm2
D.
24cm2
Correct answer is C
|VU| = |UT| = |TS|
|VS| = (4.8) x 3 = 14.4cm
|PQ| = |QR| = 4.8
|PR| = (4.8) x 2 = 9.6cm
Since quad. PRSV is a trapezium of height 5cm
Area of quad. PRSV = 12(a+b)h
= 12(14.4+9.6)×5
= 12(24)×5
12 x 5 = 60cm2