oblicz pole rombu o przekątnych: a)p= 11cm, b=9cm, h=6cm b) a=1,2dm,b=7dm, h=5,5dm
a)
P= a*h
P= 11 * 6
P = 66 (cm)²
b)
P= 1,2 * 5,5
P =6,6 (dm)²
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a)
P= a*h
P= 11 * 6
P = 66 (cm)²
b)
P= a*h
P= 1,2 * 5,5
P =6,6 (dm)²