Materi : Trigonometri
Gambar yang Terlampirkan
AB : BC : AC = 1 : √2 : 1
AB : BC = 1 : √2
AC = AB = BC × 1/√2
AC = AB = 18 × √2/2
AC = AB = 9√2 cm
L = ½ × alas × tinggi
L = ½ × AB × AC
L = ½ × 9√2 × 9√2
L = ½ × 81(√2)²
L = ½ × 81 × 2
L = 81 cm²
Semoga bisa membantu
[tex] \boxed{ \colorbox{navy}{ \sf{ \color{lightblue}{ Answer\:by\: BLUEBRAXGEOMETRY}}}} [/tex]
Jawaban:
panjang sisi AB dan CA = 9√2 cm
Luas Segitiga = 81 cm²
Penjelasan dengan langkah-langkah:
Trigonometri
..
AB : BC : CA = 1 : √2 : 1 (Panjang AB = CA)
AB / BC = 1 / √2
AB / 18 = 1 / √2
AB = 18 / √2
AB = 18√2 / 2
AB = 9√2 cm
Luas = 1/2 x 9√2 x 9√2
Luas = 1/2 x 81(2)
Luas = 81 cm²
Kesimpulan:
Detail Jawaban
Kelas : 10
Mapel : Matematika
Kategori : Trigonometri
Kode : 10.2.7
[tex]\boxed{\colorbox{ccddff}{Answered by Danial Alfat}}[/tex]
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Materi : Trigonometri
Gambar yang Terlampirkan
AB : BC : AC = 1 : √2 : 1
Panjang AB dan AC
AB : BC = 1 : √2
AC = AB = BC × 1/√2
AC = AB = 18 × √2/2
AC = AB = 9√2 cm
Luas Segitiga ABC
L = ½ × alas × tinggi
L = ½ × AB × AC
L = ½ × 9√2 × 9√2
L = ½ × 81(√2)²
L = ½ × 81 × 2
L = 81 cm²
Semoga bisa membantu
[tex] \boxed{ \colorbox{navy}{ \sf{ \color{lightblue}{ Answer\:by\: BLUEBRAXGEOMETRY}}}} [/tex]
Jawaban:
panjang sisi AB dan CA = 9√2 cm
Luas Segitiga = 81 cm²
Penjelasan dengan langkah-langkah:
Trigonometri
..
AB : BC : CA = 1 : √2 : 1 (Panjang AB = CA)
..
AB / BC = 1 / √2
AB / 18 = 1 / √2
AB = 18 / √2
AB = 18√2 / 2
AB = 9√2 cm
..
Luas = 1/2 x 9√2 x 9√2
Luas = 1/2 x 81(2)
Luas = 81 cm²
Kesimpulan:
Detail Jawaban
Kelas : 10
Mapel : Matematika
Kategori : Trigonometri
Kode : 10.2.7
[tex]\boxed{\colorbox{ccddff}{Answered by Danial Alfat}}[/tex]