tolong dibantu no.1 :))

1.
a. L segitiga = 1/2 x alas x tinggi
24 = 1/2 . 4x . 3x
24 = 6x^2
x^2 = 24/6
x^2 = 4
x = √4 = +- 2
jadi x=2,krn tdk ada panjang bernilai negatif

b. panjang sisi2 segitiga

RS = 4x = 4 x 2 = 8 cm
ST = 3x = 3 x 2 = 6 cm
TS = 6x - 2 = 6(2) - 2 = 12 - 2 = 10 cm



c. keliling segitiga =
RS + ST + TS = 8 + 6 + 10 = 24 cm