- Panjang sisi miring segitiga = √12^2 + 5^2
= √144 + 25
= √169
= 13
Sehingga, keliling = 12 + 5 + 13 = 30
Luas = 1/2 × a × t
= 1/2 × 5 × 12
= 30
- Luas persegi = Keliling persegi
s × s = 4 × s
= 4
= √144 + 25
= √169
= 13
Sehingga, keliling = 12 + 5 + 13 = 30
Luas = 1/2 × a × t
= 1/2 × 5 × 12
= 30
s × s = 4 × s
= 4
Editor: Rosma Nur Riana
Sumber: Buku Senang Belajar Matematika