Question

O piramida triunghiulara regulata are apotema de 13cm si inaltimea de12cm . Calculati aria totala si volumul piramidei

Answer 1

VM patrat= VO patrat + OM patrat
169=144+OM patrat
OM=5
OM=latura √3 supra 6
latura=5*6 supra √3
latura = 10√3
At= Ab+Al
At=75√3+95√3
At=170√3

V=h*Ab supra3
V=12*75√3 supra3
V=290√3

Sper sa fie corect.