x = 21
Step-by-step explanation:
The triangles are similar
75/25 = 3
72/24 = 3
SF = 3
So
x = 7 x 3 = 21
step-by-step explanation:
|ab| = 1.4 = 4
h = 1.4 = 4
a(abc) area = 4.4 = 16/2 = 8
area of abc = 8 cm^2
good luck ! ; )