Question

could someone please help?!

Answer 1

Answer:

42m²

Step-by-step explanation:

let the lower rectangle be abcd and and second known rectangle be pqrs and unknown rectangle be efgh

so ab*ad =48m²

ab*8=48

ab=48/8

ab=6m

and,

in pqrs

pq*qr=28m²

pq*4=28

pq=28/4

pq=7

so we got the all the side of both known rectangle

now ab=ef

and ad=fg

so all sides of rectangle efgh is also known so area of efgh = 7*6m²=42m²