Neither. An acute triangle has all angles less than 90 degrees. An obtuse triangle has one angle more than 90 degrees. A right triangle is simply just a right triangle, since it has one angle of 90 degrees.
Yes. I triangle can have no more than one obtuse angle and two acute angles, with the exception of an equilateral - each angle is 90 degrees.
-- The sum of all three angles inside every triangle is always 180 degrees. -- An obtuse angle is an angle with more than 90 degrees in it. -- So two obtuse angles have more than 180 degrees between them. -- So they can't both be in the same triangle, unless at least part of one of them is left hanging out.
Let the measure of the first angle be x⁰. So that the second angle would be (x + 21)⁰, and the third one would be (x - 15)⁰.Since the sum of angle measures in a triangle is 180⁰ we have:x + x + 21 + x - 15 = 1803x = 174x = 58Thus, the first angle is 58⁰, the second angle is 79⁰, and the third angle is 43⁰.
In a regular 8 sided octagon each interior angle is 135 degrees which is an obtuse angle
Acute. More precisely, 60 degrees each.
The sum of the internal angles of a triangle (in 2-d) must be 180 degrees. If there are two right angles - of 90 degrees each - then the third angle would be 0 degrees! That would not be a triangle.
Obtuse triangle
No. It's impossible, obviously a triangle could NOT have more then one right angle. Gosh people are ignorant these days. Remember, the angles of a triangle all have to add up to 180 degrees, and must have THREE angles to be a triangle, and 90, the degrees of a right angle, and 90, the degrees of ANOTHER right angle, equals... 180 degrees. And you simply cannot have a zero degrees angle.
Neither. An acute triangle has all angles less than 90 degrees. An obtuse triangle has one angle more than 90 degrees. A right triangle is simply just a right triangle, since it has one angle of 90 degrees.
56 degrees
Obtuse
An obtuse triangle.
Obtuse
Yes. For example an equilateral triangle has 60 degrees in each angle (180 divided by 3 is 60) and since an acute angle is an angle with degrees less than 90, all three of the 60 degree angles are acute. Therefore, you can have a triangle with 3 acute angles.
A right angle triangle is a triangle with an angle 90 degrees. An isosceles triangle is a triangle with two or more equal angles/ length of lines. An equilateral triangle can also be an isosceles triangle.
Obtuse angle