Question

aria totala a unei piramite patrulatere regulate cu inaltimea de 3 cm si latura bazei de 8 cm este egala cu ....cm patrati

Answer 1

At=Al+Ab
Al=Pb*ap/2
Ab=l²
Ab=64
apotema bazei =l/2=8/2=4
inΔVOM =>
VM=√(VO²+OM²)
VM=√(9+16)
VM=√25
VM=5 cm

Al=32*5/2
Al=80 cm²

At=80+64
At=144 cm²