Question

Find the total surface aera of cuboid
a) 12cm,10cm,5cm
b)2.5cm,2cm,1.4cm​

Answer 1

Answer:

Find the total surface aera of cuboid

a) 12cm,10cm,5cm✔️

b)2.5cm,2cm,1.4cm

Answer 2

T.S.A of cuboid= 2(lb+bh+hl)
a) 2(12*10+10*5+5*12)
=2(120+50+60)
=2*230
=>460cm^2
b)2(2.5*2+2*1.4+1.4*2.5)
=2(5+2.8+3.5)
=2*11.3
=>22.6 cm^2
Hope it helps :)