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x=(27-11):2=8
z pitagorasa obliczam h
h²=14²-8²
h²=196-64
h²=132
h=√132=2√33cm = wysokośc
od dolnej podstawy odejmujemy górną
27-11=16cm
16:2=8cm
x²+8²=14²
x²+64=196
x=√132≈11,5cm
b=11cm
c=14cm
x=(27-11)/2
x=16/2
x=8cm
x²+h²=c²
8²+h²=14²
h²=196-64
h²=132
h²=33*4
h=2√33cm