Question

please find the surface area and volume

Answer 1

volume of diagram = volume of 1+volume of 2 + volume of 3

=30*40*60+30*40*30+20*30*40

=132000

and total surface area= total surface area 1+ total surface area of 2 + total surface area of 3-40*90-40*30-40*20

total surface area=10800+6600+5200-3600-1200-800

=17000