Current location - Training Enrollment Network - Mathematics courses - A math extracurricular activity group in a school made kites out of bamboo sticks.
A math extracurricular activity group in a school made kites out of bamboo sticks.
(1) AC vertical BD. S diamond ABCD= 1/2*AC*BD=24 square decimeter.

(2) AC vertical BD. S quadrilateral ABCD= 1/2*AC*BD=24 square decimeter.

(3) Yes. Let the intersection of AC and BD be o,

S quadrilateral ABCD =1/2 * ao * BD+1/2co * BD =1/2 * BD (ao+co) =1/2 * BD * AC = 24 square decimeters.

(4) The area of quadrilateral with diagonal lines perpendicular to each other is equal to half of diagonal product.

Related articles
  • The first volume of the sixth grade math exercises 15
  • Math contests and answers
  • Solving Math Problems and Answers in Senior High School Entrance Examination: Analysis
  • What's the use of learning advanced mathematics?
  • Staging of the history of mathematics
  • Top ten mathematicians in the world
  • Complete works of second-grade mathematical pictorial
  • 60 1 textbook of mathematical analysis
  • What are the high school math competition training and high school math summer camp in Shandong Province?
  • For the postgraduate entrance examination party, how to prepare for the first round of mathematics review?

    • copyright 2024 Training Enrollment Network All rights reserved