Question

Punctul a) la ex. 2 Vă rog. Și rezolvarea.

Answer 1

a(B)=L/2=32/2=16cm
a(b)=l/2=16/2=8cm
a(tr)=√h²+[a(B)-a(b)]²=√6²+(16-8)²=√36+64=√100=10cm
R(B)=L/√2=32/√2=32√2/2=16√2CM
R(b)=l/√2=16/√2=16√2/2=8√2cm
A(lat)=(P+p)/2×A(tr)=(4×32+4×16)/2×10=(128+64)×5=960cm²
A(t)=A(lat)+A(B)+A(b)=960+32²+16²=2240cm²
V=h/3[A(B)+A(b)+√A(B)×A(b)]=6/3×(256+1024+√256×1024)⇒
V=2×(256+1024+√262144)=2×(1280+512)=2×1792=3584cm³