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zhane2015
 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.
zhane2015
 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.

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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.5By 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.5Good. What is 15 times 15?

Directrix
 2 years ago
Best ResponseYou've already chosen the best response.5You 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.5> 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.5Okay. I'll do 12 times 12 to get 144.

Directrix
 2 years ago
Best ResponseYou've already chosen the best response.512 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.5Okay. 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.5Let'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.5Glad to help. Learn that theorem on the chart and you'll get all this type problem correct.
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