Luas segitiga di samping adalah 120 cm². Nilai x adalah....
Ans :
[tex]Luas\ segitiga = \frac{2}{2} \times alas \times tinggi\\\\=120 = \frac{1}{2} \times alas \times 15\\\\240 = alas \times 15\\\\ alas = 240 : 15\\\\alas = 16\ cm\\\\\boxed{\boxed{Answers\ by\ jemmy}}[/tex]
L = ½ × a × t
120 = ½ × x × 15
120 = 15/2 × x
x = 120 ÷ 15/2
x = 120 × 2/15
x = 8 × 2
x = 16 cm
[answer.2.content]
