A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

1.) The area of a parallelogram is 240 cm2 and the height is 20 cm. Find the corresponding base. My answer is: 12cm. Is that correct? 2.) In trapezoid PQRS, line PQ is parallel to line SR. Find the area of PQRS. Leave your answer is simplest radical form. http://assets.openstudy.com/updates/attachments/55bac812e4b0aa1bfb5cf0df-lollygirl217-1438359455247-as.jpg My answer: 144+72 3. Is that correct? 3.) A kite has diagonals 5.3 ft and 6 ft. What is the area of the kite? My answer: 5.65 ft squared. Is that correct?

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

    @mathmath333

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

    First:Correct. Second:I've no clue. And for the third... Area = \[\frac{ 5.3 \times 6 }{ 2 }\]

  3. taramgrant0543664
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I was thinking the same thing as Aaron actually but when I tried that second one I didn't get that answer what did you do to get that answer?

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

    for second, \[A={1\over2}(\text{sum of parallel sides})\times{\rm height}\] You need to calculate the length of SR and the height using the right triangle on the right

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

    Am I right guys??

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

    1) is ok 2) is the area of the trapezoid + area of triangle on the right using 30-60-90 triangle, the height of the triangle (and trapezoid) is 1/2 they hypotenuse so h= 12 area of trap is 1/2(18+6)* 12 = 6*24= 144 area of tri is 1/2 ( 12 sqr(3) * 12)= 72 sqr3 added: \( 144 + 72 \sqrt{3} \) 3) area is product of the diagonals divided by 2, so 3*5.3 = 15.9

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

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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.