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=2.22/7.7(7+10)
=44/7.7(17)
=44(17)
=748
jadi l.p tabing =748cm
= 2 x 22/7 x 7 x 10 + 22/7 x 3,5^2 + 22/7 x 7^2
= 44/7 x 7 x 10 + 38,5 + 154
= 440 + 38,5 + 154
= 632,5 cm2
maaf kalo jawabannya salah