Question

Perhatikan gambar berikut yang dilingkar!
jika luas segitiga ABC adalah 24 cm². maka, panjang AD adalah..

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Answer 1

Verified answer

Luas ABC = 24 cm²
1/2 x AB x AC = 24
1/2 x 6 x AC = 24
3 AC = 24
AC = 8 cm

BC² = AB² + AC²
BC² = 6² + 8²
BC² = 36 + 64
BC² = 100
BC = √100
BC = 10 cm

Luas segitiga = 24 cm²
1/2 x AD x BC = 24
1/2 x AD x 10 = 24
5AD = 24
AD = 24 / 5
AD = 4,8 cm