Question

oblicz V i Pc (pole całkowite)prostpadłościanu o wymiarzach :

b) 2,5dm na 4 dm na 1 cm

c) 1m na 30 cm na 20 dm

d) 1m na 1 dm na 1 cm

prosze o jak najszybsze rozwiazania daje naj to na jutro!!

Answer 1

a) V= 25cm*40cm*1cm

V= 1000cm3

Pc=2*(25 cm*40cm)+2*(40cm*1cm)+2*(25cm*1cm)

PC=2000cm+80cm+50cm

Pc= 2130cm2

b)v=100cm*30cm*200cm

V=600000cm3

c)V= 100cm*10cm*1cm

V=1000cm3