kamto tolong di jawab ya nomor 3 4 5 ya ☺☺☺

[tex]1. \sqrt[2]{225} = 15 \\ 2.sisi1 = 80 \div 4 = 20cm \\ sisi2 = 100 \div 4 = 25cm \\ luas1 = 20 \times 20 =400 {cm}^{2} \\ luas2 = 25 \times 25 = 625 {cm}^{2} \\ selisih \: 625 - 400 = 225 {cm}^{2} \\ \\ 3.sisi \: a = \sqrt[2]{144 } = 12 \\ sisi \: b = 12 - 4 = 8cm \\ kell \: persegi \: a = 12 \times 4 = 48 {cm}^{2} \\ kell \: persegi \: b = 8 \times 4 = 32 {cm}^{2} [/tex]