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= 6*8/2*2 + 8*15 + 10*15 + 6*15
= 48 + 120 + 150 + 90
= 408cm^2 (a)
=2*(1/2*8cm*6cm)+3*(8cm*15cm)
=2*24cm2+3*120cm2
=48cm2+360cm2
=408cm2(a)