Answer:
The area of the larger rectangle is 40.32 cm²
Step-by-step explanation:
Two rectangles are similar if the lengths of their corresponding sides form a proportion. From the picture:
4.8/4 = x/7
where x is the length of the base of the larger rectangle.
x = (4.8/4)*7
x = 8.4 cm
The area of the larger rectangle is:
A = base*height
A = 8.4*4.8
A = 40.32 cm²