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=22/7 X 7²
=22/7 X 49
=22 X 7
= 154 cm²
L.lingkaran 2 =22/7 X 7²
=22/7 X 49
=22 X 7
= 154 cm²
L.persegi panjang = 14 x 8 = 112cm²
L daerah diarsir = 154 - 154 + 112
=112 cm² ( B )
= 1/2×22/7×7×7
= 77 cm2 (c)