tolong dijawab bsk hrs dikumpul

k = 2 * (p + l)
50 = 2 * (2x + 7 + 3x - 2)
50 = 2 * (5x + 5)
50 : 2 = 5x + 5
25 = 5x + 5
25 - 5 = 5x
20 = 5x
x = 20/5 = 4

p = 2x + 7 = 2 * 4 + 7 = 15 cm
l = 3x - 2 = 3 * 4 - 2 = 10 cm

L = p * l
= 15 cm * 10 cm = 150 cm^2 (d)