Odpowiedź:
1.
a = 3 m , b = 4 m , h = 6 m
Pc - pole całkowite = 2ab + 2(a + b) * h = 2 * 3 m * 4 m + 2(3 + 4)m * 6 m =
= 24 m² + 2 * 7 m * 6 m= 24 m² + 84 m² = 108 m²
2.
a = 2 dm , b = 8 dm , h = 6 dm
Pc = 2ab + 2(a + b) * h = 2 * 2 dm * 8 dm + 2(2 + 8) dm * 6 dm =
= 32 dm² + 2 * 10 dm * 6 dm = 32 dm² + 120 dm² = 152 dm²
3.
a = 3cm , b = 5 cm , h = 10 cm
Pc = 2ab + 2(a + b) * h = 2 * 3 cm * 5 cm + 2(3 + 5) cm * 10 cm =
= 30 cm² + 2 * 8 cm * 10 cm = 30 cm² + 160 cm² = 190 cm²
4.
a = 20cm , b = 700 mm = 70 cm , h = 1 m = 100 cm
Pc = 2ab +2(a + b) * h = 2 * 20 cm * 70 cm + 2(20 + 70) cm * 100 cm =
= 2800 cm² + 2 * 90 cm * 100 cm = 2800 cm² + 18000 cm² =
= 20800 cm² = 208 dm² = 2,08 m²
5,
a = 0,06 m = 6 cm , b = 0,4 dm = 4 cm , h = 90 mm = 9 cm
Pc = 2ab + 2(a + b) * h = 2 * 6 cm * 4 cm + 2(6 + 4) cm * 9 cm =
= 48 cm² + 2 * 10 cm * 9 cm = 48 cm² + 180 cm² = 228 cm²
