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Pc = 2Pp + Pb
Pp = a*b = 7 * 2 = 14cm2
Pb = 2 * 6 * 2 + 2 * 6 *7= 24 + 84 = 108cm2
Pc = 2 * 14 + 108 = 136cm2
b)
Pc = 2Pp + Pb
Pp = a * h
Pp = 4 * 10 = 40cm2
Pb = 2 * 10* 6 + 2 * 6 *5
Pb = 120 + 60 = 180cm2
Pc = 2 * 40 + 180
Pc = 80 + 180
Pc = 260cm2
daj naj:)
pole podstawy-7 cm*2 cm=14 cm²
obwód podstawy- 7 cm+2 cm+7 cm+ 2 cm=18 cm
pole boczne-18 cm*6 cm=108 cm²
pole całkowite-2*14 cm²+108 cm²=136 cm²
b)
pole podstawy-10 cm*4 cm=40 cm²
obwód podstawy-30 cm
pole boczne-30 cm*6 cm=180 cm²
pole całkowite-40 cm² * 2+180 cm²=260 cm²
A)
Pp= a * b
Pp= 7cm * 2cm = 14cm²
Pb= 2 * (7cm * 6cm) + 2 * (2cm * 6cm) = 84cm + 24cm = 108cm²
Pc=2 * 14cm² + 108cm² =28cm² + 108cm² = 136cm²
B)
Pp= a * h
Pp= 10cm * 4cm= 40cm²
Pb= 2 * (10cm * 4cm) + 2 * ( 5cm * 4cm) = 80cm + 40cm = 120cm²
Pc=2 * 40cm² + 120cm² = 200cm²
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