This figure is made up of a semicircle and two identical quadrants (Take π 22 /7). { ​tolong Ya 30 menit lagi}

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This figure is made up of a semicircle and two identical quadrants (Take π 22 /7). { ​tolong Ya 30 menit lagi}

This figure is made up of a semicircle and two identical quadrants (Take π 22 /7). { ​tolong Ya 30 menit lagi}

Cara :

setengah lingkaran bisa digabung dengan 2 seperempat lingkaran menjadi satu lingkaran, maka :

diameter lingkaran = 28 cm

jari – jari = 28 / 2 = 14 cm

Luas lingkaran = π × r²

                        = 22/7 × 14 × 14

                        = 616 cm²