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 one year 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.
 one year 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.

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

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

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

Directrix
 one year 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
 one year 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 )

zhane2015
 one year ago
Best ResponseYou've already chosen the best response.0OMG you're the Best!

Directrix
 one year 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
 one year ago
Best ResponseYou've already chosen the best response.0Thank You so much I really appreciate it

Directrix
 one year 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.
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