Given, PQRS is a rectangle
and PQ = 3 Ps = 12cm
To find, Area of triangle PQM
Here,
(I) 3PS = 12cm
or, PS = 12/3 = 4cm
(II) Area of rectangle PQRS = PQ x PS [Area of rectangle = length x breadth]
= 12cm x 4cm
= 48cm2
(III) Area of triangle PQM = 1/2 Area of rectangle PQRS [Both are standing on the same base and between the same parallel lines.]
or, Area of Triangle PQM = 1/2 x 48cm2
= 24cm2