Question

What is the area of the original rectangle?

A.8cm sq
B.20cm sq
C.25cm sq
D.40cm sq

Answer 1

A is the answer

You find the scale factor by doing 8÷1.6 which = 5

Then you do 25÷5=5

And then times 5 and 1.6 together to get 8cm sq

Answer 2

A. 8 cm sq

Explanation:

Find the scale factor

new width/original width

8/1.6=5

calculate length of original rectangle

new length/scale factor

25/5=5cm

Find area of original rectangle

A=l×w

A=1.6×5=8cm²