Odpowiedź:
a)
a = 12 cm
b = 10 cm
H = 30 cm
Pp= a * b = 12 cm * 10 cm = 120 cm²
Pb = 2(a + b) * H = 2(12+ 10) cm * 30 cm = 2 * 22 cm * 30 cm =
= 44 cm * 30 cm = 1320 cm²
Pc = 2 * Pp + Pb = 2 * 120 cm² + 1320 cm² = 240 cm² + 1320 cm² =
= 1560 cm²
V = Pp * H = 120 cm² * 30 cm = 3600 cm³
b)
a = 6 cm
c = 10 cm
H = 20 cm
b = √(c² - a²) = √(100 - 36) cm = √64 cm = 8 cm
Pp = 1/2 * a * b = 1/2 * 6 cm * 8 cm = 3 cm * 8 cm = 24 cm²
Pb = (a + b + c) * H = ( 6 + 8 + 10) cm * 20 cm = 24 cm * 20 cm =
= 480 cm²
Pc = 2 * Pp + Pb = 2 * 24 cm² + 480 cm² = 48 cm² + 480 cm² = 528 cm²
V = Pp * H = 24 cm² * 20 cm = 480 cm³
