Problem Solving

试题详情

题目:

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?

选项:

A、30'
B、45'
C、60'
D、90'
E、120'

答案:

A

提问:

感觉是要求出两条对角线然后来看对角线和边的关系来确定角,可是边求出来根本无法看出角度,请老师讲解题思路
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提问:

没思路, 请老师解答, 谢谢
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