Question

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?

Answer 1

Answer:

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.

Answer 2

Answer:

b

Step-by-step explanation:

just took test