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=2 x(16cm+14cm)
=2x30cm
=60cm
b.1/4x22/3x42cm
1/4x264cm=66cm
K pp = 2(p+l) K = 60 + 22 - 22
= 2(16 + 14) = 60
= 60
K set o = 1/2 . 2πr
= 1/2 . 2. 22/7 . 7
= 22
b. K = 1/4 . 2 . 22/7 . 21/2
= 16.5