dibantu yaa kak no 10 gimana caranya?

Mapel : Matematika

Kelas : 8

Bab : Lingkaran


Ra = 8 cm

Rb = 10 cm


Ditanya perbandingan Luas?


Jawaban :

[tex] \frac{La}{Lb} = \frac{\pi \times {ra}^{2} }{\pi \times {rb}^{2} } \\ \\ \\ \frac{La}{Lb} = \frac{ {ra}^{2} }{ {rb}^{2} } \\ \\ \frac{La}{Lb} = \frac{ {8}^{2} }{ {10}^{2} } \\ \\ \frac{La}{Lb} = \frac{64}{100} \\ \\ \frac{La}{Lb} = \frac{16}{25} [/tex]


Opsi C