Răspuns:
Explicație pas cu pas:
ap²=h²+(L/2-l/2)²=3+(5-4)²=3+1 a=2
Ab=8²=64cm² Pb=4×8=32 cm
AB=10²=100cm² Pb=4L=4×10=40 cm
Al=(PB+Pb)×ap/2=(40+32)×2/2=72 cm²
At=AB+Ab+AL=100+64+72=236 cm²
V=h/3(AB+Ab+√AB×AB)=√3/3(100+64+√100×64)=√3/3(100+64+80)=
=244√3/3 cm³
