Question

Calculati aria lateral a unui trunchi de piramida hexagonala regulata ,care are latura bazei mari 17 m , latura bazei mici 7 m si apotema 15 m

Answer 1

A lat = [(Pb+PB)×at] ÷ 2

Pb=perimetru baza mica

PB=perimetru baza mare

at=apotema trunchi

Pb=6×7=42 m

PB=6×17=102 m

A lat = [(42+102)×15] ÷ 2 = (144×15) ÷ 2 = 1080 m patrati

Answer 2

Răspuns:

Al=(P B+Pb)×at/2=(6×17+6×7)×15/2=(102+42)×15/2=72×15=1080

Explicație pas cu pas: