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Is the sum of any two angles of a triangle always greater than the third angle. if not why?
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How many angles greater than a right angle does this triangle have?
An obtuse triangle has 1 angle greater than a right angle and 2 acute angles. Its 3 interior angles add up to 180 degrees.
Does a right angled triangle is one angle always a right angle?
Yes. A right triangle is a triangle where one angle is a right angle. If two out of three angles are right angles, then it's an isosceles triangle. If all three angles are right angles, then it is an equilateral triangle.
Does an isosceles triangle have a angle greater than 90?
It can. An example of an isosceles triangle without any angles greater than 90 would be an equilateral triangle, with all angles equalling 60 degrees. An example with an angle greater than 90 would be a triangle with angles of 100 degrees, 40 degrees and 40 degrees. You couldn't have an isosceles triangle with 2 angles greater than or equal to 90, as all the angles sum to 180 degrees.
How many obtuse dose a triangle have?
A triangle can have either zero or one obtuse angles, but no more than that. An obtuse angle is one that is greater than 90 degrees. The interior angles of a triangle always add up to 180.
Can a triangle with a obtuse angle have two acute angles?
Yes. A triangle can have only one obtuse angle. The other two angles will always be acute.
What is the difference between an qeuilateral triangle and a right angle trangle?
A right triangle has one angle that is always 90degrees. The other angles vary from less than 90degrees to greater than 0degrees. The equilateral triangle always has all of its angles equal to 60degrees.
If a triangle has one obtuse angle then the other two angles are acute?
Yeah, they have to be. The sum of the interior angles of a triangle is always 180. If one angle is greater than 90, then the remaining two's sum cannot be.
How many angles greater than a right angle does this triangle have?
An obtuse triangle has 1 angle greater than a right angle and 2 acute angles. Its 3 interior angles add up to 180 degrees.
What is a obtuse triangle?
An obtuse triangle is one which has one angle that is greater than 90 degrees.
Does a right angled triangle is one angle always a right angle?
Yes. A right triangle is a triangle where one angle is a right angle. If two out of three angles are right angles, then it's an isosceles triangle. If all three angles are right angles, then it is an equilateral triangle.
Could a right triangle have an actue or obtuse angle?
A right triangle will always have exactly one right angle and two acute angles. It will never have an obtuse angle. The easiest proof of that is the fact that sum of the angles in a triangle is always 180o, and if it's a right triangle, then one of it's angles is 90o, leaving only 90o for the angles of both of the other two. Since they both have to be greater than zero for it to qualify as a triangle, they will always both be less than ninety, and thus always acute.
How do you classify a triangle by its angles?
If all three angles of a triangle measure less that 90 degrees (if all three angles are acute), the triangle is an acute triangle. A triangle that has a right angle (an angle the measures exactly 90 degrees) is a right triangle. (The other 2 angles will be acute angles.) A triangle that has an angle that is greater than 90 degrees (an obtuse angle), is an obtuse triangle. (The other 2 angles will be acute angles.)
Is the exterior angle of a triangle always greater then either of its remote interior angles?
Yes, because it is equal to the sum of the two of them.
Can a triangle have 2 obtuse angles and one acute angle?
Nope, only one obtuse angle in a triangle is possible. The sum of the interior angles of a triangle is always 180º and an obtuse angle is larger than 90º. Thus the sum of two obtuse angles would be greater than 180º even without including an acute angle.
Does an isosceles triangle have a angle greater than 90?
It can. An example of an isosceles triangle without any angles greater than 90 would be an equilateral triangle, with all angles equalling 60 degrees. An example with an angle greater than 90 would be a triangle with angles of 100 degrees, 40 degrees and 40 degrees. You couldn't have an isosceles triangle with 2 angles greater than or equal to 90, as all the angles sum to 180 degrees.
How many obtuse dose a triangle have?
A triangle can have either zero or one obtuse angles, but no more than that. An obtuse angle is one that is greater than 90 degrees. The interior angles of a triangle always add up to 180.
Can a triangle with a obtuse angle have two acute angles?
Yes. A triangle can have only one obtuse angle. The other two angles will always be acute.
