Luas daerah yang diarsir pada gambar berikut adalah cm 2

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Ingat bahwa, rumus luas dan keliling lingkaran dan persegi berturut-turut adalah 

L◯​=πr2 dan L□​​=​s2​

Diketahui, 

2rr​===​s21221​ cm​

dan daerah yang diarsisr merupakan gabungan bangun persegi yang ditambahkan setengah lingkaran dan dikurangi sebuah lingkaran, dimana luasnya adalah

L​=========​L□​+21​L◯​−L◯​L□​−21​L◯​s2−21​πr2212−2722​×(221​)2​441−2×22×722×212​441−411×21×3​441−4693​441−173,25267,75 cm2​

Sehingga, luas daerah yang diarsir adalah ​​267,75 cm2​.

Oleh karena itu, jawaban yang benar adalah A.