" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
Krawędź podstawy graniastosłupa - 7 cm
Krawędź boczna graniastosłupa - 12 cm
Pp = 7 cm · 7 cm = 49 cm²
Pb = 2 · 7 cm + 2 · 12 cm · 12 cm = 14 cm + 24 cm · 12 cm = 38 cm · 12 cm = 456 cm²
Pc = 2 · Pp + Pb = 2 · 49 cm² + 456 cm² = 98 cm² + 456 cm² = 554 cm²
4.4
Pp = 5 cm · 4 cm = 20 cm²
Pb = 2 · 5 cm + 2 · 3 cm · 15 cm = 10 cm + 6 cm · 15 cm = 16 cm · 15 cm = 240 cm²
Pc = 2 · Pp + Pb = 2 · 20 cm² + 240 cm² = 40 cm² + 240 cm² = 280 cm²