Problem Solving

试题详情

题目：

On an aerial photograph, the surface of a pond appears as circular region of radius  inch.  If a distance of 1 inch on the photograph corresponds to an actual distance of 2 miles, which of the following is the closest estimate of the actual surface area of the pond, in square miles?

选项:

A、1.3
B、2.4
C、3.0
D、3.8
E、5.0

答案:

B

提问：

点此查看答疑
π（7/16）^2 *2 这样列为什么算不对呢？
评分: 0
浏览: 760

学长故事

免扫码试听

24小时随身答疑小程序

GMAT每日一题

点我领取
免费专项课程
 在线咨询

( ! ) Fatal error: Uncaught yii\web\HeadersAlreadySentException: Headers already sent in /data/www/gmat-didi/vendor/yiisoft/yii2/web/Response.php on line 438. in /data/www/gmat-didi/vendor/yiisoft/yii2/web/Response.php on line 373
( ! ) yii\web\HeadersAlreadySentException: Headers already sent in /data/www/gmat-didi/vendor/yiisoft/yii2/web/Response.php on line 438. in /data/www/gmat-didi/vendor/yiisoft/yii2/web/Response.php on line 373
Call Stack
#TimeMemoryFunctionLocation
10.06622957712yii\web\ErrorHandler->handleFatalError( ).../ErrorHandler.php:0
20.06632665304yii\web\ErrorHandler->renderException( $exception = class yii\base\ErrorException { protected $message = 'Module \'zip\' already loaded'; private ${Exception}string = 'yii\\base\\ErrorException: Module \'zip\' already loaded in Unknown:0\nStack trace:\n#0 {main}'; protected $code = 32; protected $file = 'Unknown'; protected $line = 0; private ${Exception}trace = []; private ${Exception}previous = NULL; protected $severity = 32 } ).../ErrorHandler.php:288
30.06652684408yii\web\Response->send( ).../ErrorHandler.php:136
40.06662685664yii\web\Response->sendHeaders( ).../Response.php:346