tolong ya matematika
Jawaban
B. 20 cm²
Penyelesaian terlampir yaa
[tex]l = p \times l \\ 5 \times (y + 2) = 4 \times (y + 3) \\ 5y + 10 = 4y + 12 \\ 5y - 4y = 12 - 10 \\ y = 2 \\ \\ 5 \times (y + 2) \\ 5 \times (2 + 2) \\ 5 \times 4 \\ 20 \: {cm}^{2} \: (b)[/tex]
[answer.2.content]
