please kumpul besok. butuh simulasi

1.
24x²+20x-24/18x²-8 = 4(2x+3)(3x-2)/2(3x-2)(3x+2) = 2(2x+3)/(3x+2) = 4x-6/3x-2

3.
OC = √40²-24²=32cm
OA = √30²-24²=18cm

L = 1/2 d1 d2
L = 1/2 50 48
L = 50.24
L = 1200cm²

semoga membantu :)