no, the definition of a right triangle is that one of its angles is 90 degrees while the other 2 are 45 degrees wrong... the other angles can be any angle less than 90 so long as one angle is exactly 90 degrees it is still a right triangle. ps. it is more appropriate when improving answer to add your comment not delete someone elses... your absolutely right. that was my bad. that was actually an awful answer on my part. didn't mean to delete yours.
Obtuse triangle
A triangle with the third angle that measures 30 degrees.This triangle is not isosceles nor equilateral but has one obtuse angle.
The missing angle measure is 100 degrees.
What are the properties of the various triangles given:Isosceles triangles have two sides equal, two angles equalScalene triangles have all three sides different and all three angles differentRight triangles have one angle which is a right angle (90°)acute triangles have all angles less than 90°obtuse triangles have one angle greater than 90°As an isosceles triangle has two sides equal, it cannot be a scale triangle which has all three angles different.For the other three properties, consider:The sum of the angles in a triangle is 180°If one angle is 90°, the other two angles could be: (180° - 90°) / 2 = 45° each - two angles the same→ an isosceles triangle could be a right triangleIf all angles are less than 90°, let one angle be 80°, the other two angles could be: (180° - 80°) / 2 = 50° each - two angles the same→ an isosceles triangle could be an acute triangle(Note that if one angle was 60°, then the other two being equal would be: (180° - 60°) / 2 = 60° each making all three angles the same and the triangle an equilateral triangle)If one angle is greater than 90°, let it be 100°, the other two angles could be: (180° - 100°) / 2 = 40° each - two angles the same→ an isosceles triangle could be an obtuse triangleFrom the given list, an isosceles triangle could be a right, acute or obtuse triangle, but it could not be a scalene triangle.
The supplement of an 80 degree angle is an 100 degree angle.
If a triangle has a 100 degree angle, it is an obtuse triangle because a 100 degree angle is an obtuse angle. angle > 90 = obtuse angle = 90 = right angle < 90 = acute
No because the given dimensions do not comply with Pythagoras; theorem for a right angle triangle.
NO
No, because a triangle's angles can only measure up to 180 degrees. A right angle is 90 degrees, plus another 100 degree angle would be 190 degrees.
6^2+8^2 = 36+64 = 100 9^2 = 81 100>81 This triangle is not a right angle triangle
Using Pythagoras' theorem the hypotenuse of the right angle triangle is 100 cm
The 3rd angle is 30 degrees and so it is an obtuse or a scalene triangle with 3 different side lengths and no right angle.
The total when you add up the three angles in a triangle is 180 degrees.If one angle is 100 degrees, then the total of the other two angles is 80 degrees. This means that those two angles must SMALLER than 90 degrees.So a triangle with an angle of 100 degrees cannot be a right triangle.
Obtuse triangle
Yes it can... the side length has nothing to do with the angle measures... I am in 6th grade and i just took the test on this, i got 100%...
Obtuse triangle
An obtuse triangle