liwonsubagyo
K. Lingkaran = 2π r = 2 x 22/7 x 14; =88 cm a) 360 : 4 = 90 = 90/360 x 22/7 x 14 x 14 , = 1/4 x 22/7 x 14 x 14 , = 1/4 x 616 = 154 cm² b ) L segitiga = 14 x 14 : 2 = 99 cm² c) L . tembereng = luas juring - luaas segitiga , = 154 - 98 = 56 cm²