panjang suatu persegi panjang PANJANG 8cm dan luasnya 72cm2 keliling persegi panjang adalah
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Jawaban:
keliling persegi panjang tersebut 34cm
dik : panjang (p) = 8
luas = p x l
72 = 8 × l
72/8= l
l(lebar) = 9
keliling= 2 (p + l )
= 2 (8+9)
=34
L = p × l
72 cm² = 8 × lebar
lebar = 72/8
= 9 cm lebar
k = 2 × ( p + l )
k = 2 × ( 8 + 9 cm )
k = 2 × 17
k = 34 cm
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