Answer:
The answer is A.
Step-by-step explanation:
You have to multiply by converting the second fraction into upside down :





Answer:
C. 16 cm
Step-by-step explanation:
Top side: 2 + 4 = 6
Right side: 1 + 1 = 2
Bottom: 2 + 4 = 6
Left side: 1 + 1 = 2
6+6+2+2 = 16 cm.
All of the angles should be the same because a square has all equal angles and side lengths.