SAT考试官方真题(十七)

时间:2016-01-13 15:06:12  / 编辑:Abby
   为了要同学们可以在SAT考试中拿到理想的成绩,小编以后每天给同学们整理两道官方真题,供同学们练习。每天坚持小编相信同学们一定可以拿到理想的成绩!

  Read the following SAT test question and then click on a button to select your answer.

  Miguel is 180centimeters tall. At 2:00 p.m. one day, his shadow is 60 entimeters long, and the shadow of a nearby fence post is t centimeters long. In terms of t what is the height, in centimeters, of the fence post?

  (A) t+120

  (B) t/3

  (C) 3t

  (D) 4

  (E) (t/3

  Explanation

  The situation described in the question can be pictured as in the figure below, where x s the height, in centimeters, of the fence post.There are two right triangles in the figure. One triangle is formed by part of the line from the sun to point p

  , the perpendicular from Miguel’s head to the ground, and Miguel’s shadow along the ground. The other triangle is formed by part of the line from the sun to point , the perpendicular from the top of the fence post to the ground, and the fence post’s shadow along the ground. Since these two right triangles share the acute angle at , they are similar triangles. Since the corresponding sides of similar triangles are in proportion, it follows that. Solving this equation for , the height, in centimeters, of the fence post, yields x=3t

  以上是一诺留学小编给大家整理的SAT考试真题练习,希望可以帮助到同学们!同学们每天坚持练习,小编相信时间长了一定可以有意想不到的效果。好了,同学们如果还有任何关于SAT考试的问题,可以拨打一诺留学的免费热线400-003-6508或者010-62680991进行咨询,或者点击一诺留学官方网站http://www.yinuoedu.net/页面的“在线咨询”与一诺留学专家直接对话。微信订阅号:留学圈 (微信帐号:yinuoliuxue )

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