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anonymous
 one year ago
Several triangles are shown below with congruent sides, congruent angles and right angles shown. NEED HELP PLEASE!!! I WILL GIVE YOU A MEDAL IF YOU ANSWER.
anonymous
 one year ago
Several triangles are shown below with congruent sides, congruent angles and right angles shown. NEED HELP PLEASE!!! I WILL GIVE YOU A MEDAL IF YOU ANSWER.

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mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1What is a scalene triangle?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0A triangle that are unequal.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Yes, all sides have different lengths.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1435628118651:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1I think you can only conclude two sides are congruent if the figure shows it, right? For example in triangle ABC, we are shown that sides AB and BC are congruent.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1In triangle FED, we don't know that any sides are congruent.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I got for A. QRT DEF, and GHI

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so it would only be QRT?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1435628307134:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1We only know about sides being congruent in the three triangles on the left. That means the three triangles on the right are scalene.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1435628565788:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1(a) Triangles FED, JKL, and QRT

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Ok. Now isosceles. What is an isosceles triangle?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1435628698681:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Can you explain it in words? What do you know about lengths of sides in an isosceles triangle?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Umm, its kind of elongated in a way.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Specifically, an isosceles triangle is a triangle that has at least two congruent sides.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Examples of isosceles triangle. In each case, at least two sides are congruent. dw:1435628860898:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1If all sides are congruent, then it's a special case of an isosceles triangle that is also equilateral.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Now look in the figure of your problem. Which triangles have at least two congruent sides?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1435628996774:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1(b) Triangles ABC, GHI, MNP

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0But its right? how does it have same sides?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1The figure with your problem shows little marks on the sides of triangle MNP . Those marks mean that those sides are congruent.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1435629184547:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Ok, next is (c). Which triangles are right triangles? A right triangle has one right angle.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1435629246793:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Correct. (c) Triangles EDF and MNP

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Now (d), equilateral triangles. An equilateral has all three sides congruent.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1In triangle ABC, we only know sides AB and BC are congruent. That makes the triangle isosceles. To be equilateral, you need all sides congruent. The sides of triangle JKL have no marks on them at all. We don't know what their lengths are and if they are the same or different. Therefore, we cannot make any conclusions about the sides being congruent. Look at triangle GHI. The 2 marks on each side mean that all sides are congruent. Triangle GHI is equilateral.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1(d) Triangle GHI

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0is there a difference betwen the lines on ABC and GHI

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1In ABC, two sides have 1 mark each. That means those two sides are congruent. In GHI, each side has two marks each. That means all three sides are congruent, but different from the sides in ABC.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1On the other hand, since sides AB and BD have one mark each, and sides MN and NP also have one mark each, that means all 4 of those sides are congruent.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Finally, we get to (e). Do you know what an obtuse triangle is?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1(Hint: think of a right triangle, but substitute obtuse for right.)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes it means that it's greater then 90 degrees.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Right triangle: \(\sf A ~\color{red}{right} ~triangle ~has ~one ~\color{red}{right} ~angle.\) Obtuse triangle: \(\sf A \color{green}{n~obtuse} ~triangle ~has ~one ~\color{green}{obtuse} ~angle.\)

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Correct. Which triangles have one angle of more than 90 degrees?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Correct, but I think that JKL also has an obtuse angle. dw:1435630158625:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1(e) Triangles JKL and QRT

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you so much for all the help I needed it!

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1You are welcome.
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