Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

iTiaax

PLEASE HELP! MEDAL WILL BE AWARDED! The vertices of a quadrilateral, OABC, are (0,0), (4,2), (6,10) and (2,8) respectively. Use a vector method to answer the questions which follow. a. (i) State two geometrical relationships between the line segments OA and CB. (ii) Explain why OABC is a parallelogram b. If M is the midpoint of the diagonal OB, and N is the midpoint of the diagonal AC, determine the position vector of: (i) OM (ii) ON Hence, state one conclusion which can be made about the diagonals of the parallelogram.

  • one year ago
  • one year ago

  • This Question is Closed
  1. kiskopo
    Best Response
    You've already chosen the best response.
    Medals 1

    for a, OA and CB are pararell and has the same length. Because their "directional" vector is (6,10)-(2,8)=4,2 and (4,2)-(0,0)=4,2 and the length is from SQRT((6-2)^2+(10-8)^2)=Sqrt(20) and SQRT((4-0)^2+(2-0)^2)=Sqrt(20). Other sides are also paralell so its a paralellogramm for b, OM=OB/2=(6,10)/2=(3,5), same for ON. So the statement is that OM and ON are equal. The midpoints are in the same place.

    • one year ago
    • Attachments:

See more questions >>>

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.