A square with an area of A2 is enlarged to a square with an area of 25A2. How was the side of the smaller square changed? The side length was increased by 5.
The side length was multiplied by 5.
The side length was increased by 10.
The side length was multiplied by 10.

second option : the side length was multiplied by 5.

Step-by-step explanation:

a = side length of the original square

A² = a×a

(a+5)×(a+5) = a² + 10a + 25

and that should be equal to a²×25

a² + 10a + 25 = 25a² ?

10a + 25 = 24a²

no, that is not true for all a

a×5 × a×5 = a²×25 = 25A²

this is the correct solution, as it is true for all a.

b

Step-by-step explanation:

just took test

1,918

step-by-step explanation:

i believe the answer is d.

hope it you! : d