Current location - Training Enrollment Network - Mathematics courses - On 20 13, my answer to question 24 of the senior high school entrance examination in Taian was 67.5, but the answer was 7 1.4. What should I do?
On 20 13, my answer to question 24 of the senior high school entrance examination in Taian was 67.5, but the answer was 7 1.4. What should I do?
CB=50*0.5=25 nautical miles, crossing D is the vertical line of AB, crossing AB in E, and CE=25+AB/2.