SAT数学Problem Solving练习题(14)
- 2017年07月25日14:09 来源:互联网
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Question 14: The isosceles triangle ABC from the figure below has the BAC angle = 400. What is the angle ADE if DE is half of BC?
(a) 70o
(b) 35o
(c) 40o
(d) It cannot be determined from the information given
(e) 75o
Answer: There is an infinite number of segments DE that will have half the length of BC. Fig.1 and Fig.2 show 2 possibilities. The correct answer is (d).