Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

melissaciruzzi

  • one year ago

Quadrilateral ABCD has coordinates A (3, -5), B (5, -2), C (10, -4), D (8, -7). Quadrilateral ABCD is a

  • This Question is Open
  1. RolyPoly
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Check the angles to see if they are 90 degrees. Opposite sides in parallelogram share the same length as well.

  2. shivshilpa
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    AB = sqr root (5-3)^2 + (-2+5)^2 = sqr root 13 BC = sqr root(10-5)^2 + (-4+2)^2= sqr root 29 CD= sqr root(8-10)^2 + ((-7+4)^2 = sqr root 13 DA = sqr root(3-8)^2 + (-5+7)^2 = sqr root 29 ABCD is paralellogram

  3. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Now that you know it's a parallelogram, you need to find out if it is also a rectangle. Find the slopes of two adjacent sides. If their product is -1, the sides are perpendicular, and it is a rectangle, if not, then it's just a parallelogram. |dw:1388333794191:dw|

  4. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.