[求助]想请教涛涛版GWD Math 24 第31及32题

slin0717

31
                

Each side of a certain parallelogram has length 6. if the area of the parallelogram is 18. which of the following is the measure of one of its angles?

A. 30’   B. 45’   C. 60’   D. 90’   E.120’

Answer  A

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32
                

If ¼ of the larger of two numbers is greater than 5 times the smaller of the same two numbers, is the smaller number less than 4?

(1)   The larger number is greater than 70.

(2)   The larger number is less than 80.

 

Answer  B

 

想请各位大大解释一下题意跟解法,谢谢