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Can a triangle have 2 parallel lines?
A triangle has by definition three intersecting sides. If two of the sides are parallel, they will never intersect, so no triangle can ever be formed.
What is perpendicular an d parallel lines?
Perpendicular lines intersect at a 90 degree angle. Parallel lines do not intersect, nor would they ever intersect if continued infinitely.
Is an altitude ever outside a triangle?
Sure. If one of the base angles is more than 90 degrees, then the altitude (height) is outside the triangle. Yes. This only occurs with an obtuse triangle. Because an altitude is a line drawn from a vertex to the opposite side and is perpendicular with that opposite side, it can only occur if it is outside the triangle. Look at the triangle in related links. If you look at the vertex on the top, the only way to draw the altitude would be to draw outside the triangle.
What is perpendicular mean in math?
It means a line that intersects with another line. Where as parallel would be a lines that do not intersect, ever.
What angle is 178 degrees?
It is obtuse
What is The incenter of a triangle falls outside of its triangle?
The incenter of a triangle is the point at which the 3 medians (lines from the vertex to the middle of the side opposite the vertex) of the triangle intersect. Per it's definition, the incenter cannot ever fall outside the triangle. On the other hand, the orthocenter (intersection of the altitudes) can. It does so whenever the triangle is obtuse.
Is an obtuse triangle ever a right triangle?
no
Could a obtuse triangle ever be an equilateral triangle?
No.
Does an obtuse triangle have two obtuse angles?
No not ever because the 3 interior angles of any triangle add up to 180 degrees and so an obtuse triangle will have 1 obtuse and 2 acute angles.
Will an angle bisector ever intersect outside the triangle?
No.
Does a obtuse triangle ever have equal sides?
yes
Is an obtuse angle ever an equilateral triangle?
nope
Is the angle bisector of a scalene triangle ever intersect at a single point?
never
Can an obtuse triangle ever be a scalene triangle?
Yes. The triangle with sides 7 cm, 8 cm, 13 cm is obtuse (the angle opposite the side of 13 cm is 120o) and scalene as none of the sides are equal.
Do some triangle have two obtuse angle and 1 acute angle?
No because any triangle must have a total of 180 degrees when the angles are added together and with 2 obtuse angles the sum would be greater than 180. A triangle can only ever have one obtuse angle.
Can a triangle have 2 parallel lines?
A triangle has by definition three intersecting sides. If two of the sides are parallel, they will never intersect, so no triangle can ever be formed.
Does an isosceles triangle have two obtuse angles?
No. It is not possible in Euclidean planar geometry (if you don't know what that means, it means "the only kind of geometry you've ever heard of") for a triangle to have two obtuse angles.
