Will mark bianleast When figure ABCD is reflected across the dotted line into figure A′B′C′D', which describes the position of B'?

5 units below the dotted line

5 units above the dotted line

3 units below the dotted line

3 units above the dotted line

5 units above the dotted line

Step-by-step explanation:

The reason for this is that there is a distance of 5 units between point B and the line so we know that when it is reflected there will be a distance of 5 as well.

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared