Jawaban :
Panjang sisi siku-siku suatu segitiga 4x cm dan 3x cm. Jika panjang sisi hipotenusa nya 35 cm, keliling segitiga tsb.??
[tex] 35 = \sqrt{ (3x)^{2} + (4x)^{2} } [/tex]
[tex]35 = \sqrt{9 x^{2} + 16 x^{2} } [/tex]
[tex]35 = \sqrt{25 x^{2} } [/tex]
[tex]35 = 5x[/tex]
x= 7
keliling segitiga= 3.7 + 4.7 + 35 = 21+28+35 = 49+35= 84 cm.
[tex] 35 = \sqrt{ (3x)^{2} + (4x)^{2} } [/tex]
[tex]35 = \sqrt{9 x^{2} + 16 x^{2} } [/tex]
[tex]35 = \sqrt{25 x^{2} } [/tex]
[tex]35 = 5x[/tex]
x= 7
keliling segitiga= 3.7 + 4.7 + 35 = 21+28+35 = 49+35= 84 cm.
[tex]35 = \sqrt{(3x)^2 + (4x)^2} [/tex]
[tex]35 = \sqrt{9x^2 + 16x^2 } [/tex]
[tex]35 = \sqrt{25x^2} [/tex]
[tex]35 = 5x[/tex]
[tex]x = \frac{35}{5} [/tex]
[tex]x = 7[/tex]
lalu keliling segitiga = sisi + sisi + sisi
= (3 x 7) + (4 x 7) + 35 = 21 + 28 +35
= 49 + 35 = 84cm
[tex]35 = \sqrt{9x^2 + 16x^2 } [/tex]
[tex]35 = \sqrt{25x^2} [/tex]
[tex]35 = 5x[/tex]
[tex]x = \frac{35}{5} [/tex]
[tex]x = 7[/tex]
lalu keliling segitiga = sisi + sisi + sisi
= (3 x 7) + (4 x 7) + 35 = 21 + 28 +35
= 49 + 35 = 84cm