T I a transformation represented by the matrix (5x 2) under T a square whose area is 10cm³

(-3 x)
is mapped onto a square of 110cm².Find the possible values of x

1 answer

To find the possible values of x, we need to determine the scale factor of the transformation.

The area of the square after the transformation is given as 110 cm².
The area of the original square is 10 cm³, but since it is a square, the area can also be expressed as s², where s is the length of a side of the square.

So, 10 cm² = s².

Taking the square root of both sides, we get:
√10 cm = s

Since the transformation multiplies the length of the side by a scale factor of 5, the length of the side after the transformation is 5√10 cm.

Setting this length equal to the length of the side of the transformed square (x):
5√10 cm = x

Therefore, the possible values of x are 5√10 cm.