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= 5² - 3²
= 25 - 9
=16
af = √16 = 4
panjang ad = 2 x 4 = 8
panjang ad = 2 x of = 2 x 3 = 6
jawab
keliling = 2 x (p+l)
= 2 x (8+6)
= 2 x 14
= 28 cm
L = p x l
= 8 x 6
= 48 cm²