48.8 cm2 that is the answer I got
You first work out the mean then for each number subtract the mean and square the result then work out the mean of those squared differences and take the square rot of that and you're done :)
The suntraction fracción is 8/10-3/10 = 5/10 = 1/2
Rotation: a b
Translation:e j
Reflection over a horizontal line: g f
Reflection over a vertical line: c e
Rotation then reflection: a h
Rotation then translation: a d
I’m sorry if this isn’t right
I'll help you in the comments of this questions. need time to work it out.