Question

O prisma patrulatera regulata are l=12 cm , h=5 cm.
Calculati:
a) At=?
b) V=?
Help me plisss

Answer 1

At=Al+2Ab=240+2•144=240+288=528
Al=Pb•h=48•5=240
Pb=4l=12•4=48
Ab=l la patrat =12•12=144

V=Ab•h=144•5=720

Answer 2

At  = 2·Ab + Al = 2·12² + 4·5·12 = 288 + 240 = 528 cm²

V = Ab·h = 12²·5 = 144·5 = 720 cm³