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Luas segitiga + Luas set. link
(1/2 * a * t) + (1/2 phi r^2)
(1/2 * 28 * 22) + ( 1/2 * 22/7 * 14 * 14)
308 + (22 * 14)
308 + 308
616 cm^2
* luas 1/2 lingkaran = 1/2 x = 1/2 x 22/7 x 324 = 509,14
= 234 + 509,14 = 743,14