Im not so sure, but maybe u can help me.

C and A

Step-by-step explanation:

I think but not sure

A and C

Step-by-step explanation:

The only shapes that have perfect 90° are the square and rectangle. It is impossible to form other shapes cutting only parallel and/or perpendicular to any side of the rectangular prism.

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.