Luas 1/2 lingkaran = 1/2 x 22/7 x 14 x 14
= 308
Luas trapesium = 1/2 x 70 x 14
= 490
Luas yang diarsir = 490 - 309
= 81
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Luas 1/2 lingkaran = 1/2 x 22/7 x 14 x 14
= 308
Luas trapesium = 1/2 x 70 x 14
= 490
Luas yang diarsir = 490 - 309
= 81