patriciadianala
A. Luas lingkaran = 2πr² = 2 x 22/7 x 14² = 2 x 22 x 14 = 616cm² b. Luas juring KOL = 90°/360° x luas lingkaran = 90°/360° x 616 = 154cm² c. Luas segitiga KOL = a x t/2 = 14 x 14/2 = 98cm² d. Luas tembereng = luas juring - luas segitiga = 154 - 98 = 56cm²
= 2 x 22/7 x 14²
= 2 x 22 x 14
= 616cm²
b. Luas juring KOL = 90°/360° x luas lingkaran
= 90°/360° x 616
= 154cm²
c. Luas segitiga KOL = a x t/2
= 14 x 14/2
= 98cm²
d. Luas tembereng = luas juring - luas segitiga
= 154 - 98
= 56cm²