A community for students.
Here's the question you clicked on:
 0 viewing
 2 years ago
A triangle has side lengths of 12 cm, 15 cm, and 20 cm. Classify it as acute, obtuse, or right. (1 point)
acute
obtuse
right
There is not enough information.
 2 years ago
A triangle has side lengths of 12 cm, 15 cm, and 20 cm. Classify it as acute, obtuse, or right. (1 point) acute obtuse right There is not enough information.

This Question is Closed

zhane2015
 2 years ago
Best ResponseYou've already chosen the best response.0I wanna choose Right...

Directrix
 2 years ago
Best ResponseYou've already chosen the best response.3By the converse of the Pythagorean Theorem, if 20^2 = 15^2 + 12^2, then "right" is correct. Check the arithmetic and let us know. @zhane2015

Directrix
 2 years ago
Best ResponseYou've already chosen the best response.3Good. What is 15 times 15?

Directrix
 2 years ago
Best ResponseYou've already chosen the best response.3You can enter "15 times 15" in the Google search box and get the product. @zhane2015

Directrix
 2 years ago
Best ResponseYou've already chosen the best response.3> I wanna choose Right... @zhane2015 Suggest you not choose until the arithmetic is done.

Directrix
 2 years ago
Best ResponseYou've already chosen the best response.3Okay. I'll do 12 times 12 to get 144.

Directrix
 2 years ago
Best ResponseYou've already chosen the best response.312 cm, 15 cm, and 20 cm.  Question: Is 12^2 + 15^2 = 20^2 That is, is 144 + 225 = 400? Yes or No?

Directrix
 2 years ago
Best ResponseYou've already chosen the best response.3Okay. Therefore, the triangle is NOT Right. That leaves Obtuse and Acute. Check out this attachment below: (comes from http://jwilson.coe.uga.edu/emt668/emat6680.folders/brooks/6690stuff/righttriangle/pythagconv.html )

Directrix
 2 years ago
Best ResponseYou've already chosen the best response.3Let's test for acute. Is 400 < 225 + 144 [ Is 20^2 < 12^2 +15^2 ] Yes or No? @zhane2015

zhane2015
 2 years ago
Best ResponseYou've already chosen the best response.0Thank You so much I really appreciate it

Directrix
 2 years ago
Best ResponseYou've already chosen the best response.3Glad to help. Learn that theorem on the chart and you'll get all this type problem correct.
Ask your own question
Sign UpFind 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
 Engagement 19 Mad Hatter
 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.