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# does a triangle have a right angle?

### 17 Answers

- geezerLv 710 months ago
Only a right angled triangle has a right angle.

Two thumbs down !

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- lenpol7Lv 710 months ago
There are four types of triangle;

1. Right- angled - where one angle is 90o.

2. Equilateral - where the three angles are all the same value - 60o.

3. Isosceles - Where two sidesand two angles are equal.

4. Scalene - Where all three angles and all three sides are different.

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- KrishnamurthyLv 710 months ago
Some triangles have a right angle but not all triangles have it.

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- brainyandyLv 610 months ago
A right angle is 90 degrees so if a triangle has an angle of 90 degrees in it, then its a right angled triangle.

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- Anonymous10 months ago
Only a right angled triangle does

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- JohnathanLv 710 months ago
Not necessarily. Acute scalene/isosceles, obtuse scalene/isosceles, and equilateral triangles...pick your poison. Plenty of counterexamples.

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- Anonymous10 months ago
If the sum of the three angles of the triangle add up to 180 degrees then each of the angles is correct or "right"

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- D gLv 710 months agoReport
I notice you didnt have the guts to show your identity with that STUPID answer

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