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= 2 (25 + 16)
= 2 * 41
= 82 cm^2
K 1/2 lingkaran = 1/2 (π*d)
= 1/2 (3,14*16)
= 1/2 * 50,24
= 25,12 cm^2
jadi kelilingnya = 82 + 25,12
= 107,12 cm^2
sedangkan untuk luasnya
= L pp + L 1/2 lingkaran
= (p*l) + 1/2(πr^2)
= (25*16) + 1/2(3,14*8^2)
= 400 + 1/2(200,96)
= 400 + 100,48
=500,48 cm^2