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c=5 cm
x²+4²=5²
x²=25-16
x²=9
x=3 cm
a=b+6
a+b=2c
b+6+b=10
2b=10-6
2b=4
b=2 cm
0bw=10+10=20 cm
P=1/2*(10)*4
P=20 cm²
Pozdrawiam. :*
r=2 to h=4 cm
c=5 cm
x²+4²=5²
x²=25-16
x²=9
x=3 cm
a=b+6
a+b=2c bo trapez opisany na okręgu
b+6+b=10
2b=10-6
2b=4
b=2 cm
0bw=10+10=20 cm
P=1/2*(10)*4
P=20 cm²