The first is going to be, D. & the second question is, C.
You multiply the length and the width if it is a square. if you give the shape i can be more specific
Answer:
D, E
Step-by-step explanation:
All sides are not the same length so not A
Two sides are not the same length so not B
Not all angles are less than 90 so not C
All sides are different length so D
There is a right angle so E
Not all sides are greater than 90 so not F
