Answer:
The dimensions of the enlarged poster are by
Step-by-step explanation:
we know that
The scale factor is equal to the measure of the corresponding side of the enlarged poster divide by the the measure of the corresponding side of the original poster
Let
z-----> scale factor
x------> the measure of the corresponding side of the enlarged poster
y------> the measure of the corresponding side of the original poster
so
In this problem we have
Step 1
Find the length of the enlarged poster
we have
substitute
Step 2
Find the width of the enlarged poster
we have
substitute
therefore
the dimensions of the enlarged poster are by