Question

Litera b), vă rog ! Mulțumesc !!

Answer 1

Răspuns:

$d = \sqrt{a {}^{2} + {b}^{2} + c {}^{2} } \\ d = \sqrt{144 + 256 + 225 } \\ d = \sqrt{625} \\ d = 25$

A(L)=2(12×15+16×15)

A(L)=2×420

A(L)=840

A(T)=2(12×16+12×15+16×15)

A(T)=2×612

A(T)=1224

V=L×l×h

V=12×16×15

V=2880