In parallelogram abcd, m∠bac = 40.62°and m∠bca = 30.96°. what is m∠bad?

a. 108.42°
b. 81.24°
c. 71.58°
d. 61.92°

The answer is letter a.  m∠BAD = 108.42° 

The solution is as follows:
If m∠BAC = 40.62° and m∠BCA = 30.96°, then
m∠CBA = 180° -  m∠BCA - m∠BAC
m∠CBA = 108.42°

Since m∠BAD = m∠CBA  due to the parallelogram's property, 
m∠BAD = 108.42°.

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's