halo kakak².. tolong bantu dong, terimakasih :)
Penjelasan dengan langkah-langkah:
LAYANG–LAYANG
AD = √12²+9²) = √225 = 15
CD = √(12²+16²) = √400 = 20
Keliling = 2 × (15 + 20)
Keliling = 2 × 35
Keliling = 70
Luas = 12 × (9 + 16)
Luas = 12 × 25
Luas = 300
selisih = 300 – 70
selisih = 230 ✔
Jawab:
230
Penjelasan dengan langkah-langkah:
Luas = OD×(OA+OC)
Luas = 12 × (9+16)
Luas = 12 × 25
Luas = 300
Keliling = 2(√(0D²+0A²)+√(0D²+OC²))
Keliling = 2(√(12²+9²)+√(12²+16²))
Keliling = 2(√(144+81)+4√(3²+4²))
Keliling = 2(√(225)+4√(9+16))
Keliling = 2(15+4√(25))
Keliling = 2(15+4(5))
Keliling = 2(15+20)
Keliling = 2(35)
Keliling = 70
Luas-keliling = 300-70 = 230
(xcvi)
