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In which type of triangle does a orthocenter of the triangle fall outside the triangle?
Obtuse triangle! To make this happen the altitude lines have to be extended so they cross.Hope this helps!
How are perpendicular lines different from a intersecting lines?
They are not. The perpendicular bisectors of a triangle, for example, intersect at the orthocentre of the triangle. So perpendicular lines can be intersecting and conversely.
How can I Draw 2 lines of symmetry on a triangle?
You cannot. An equilateral triangle has 3 lines of symmetry, an isosceles has one and a scalene none. So there is no triangle with two lines of symmetry. Of course, you could draw only two of the three possible lines of symmetry for an equilateral triangle.
Does a rght triangle need parallel and perpendicular lines?
Perpendicular lines meet at a right angle so a right angled triangle has two lines which are perpendicular to eachother. However there are no parallel lines in a right angled triangle, or any triangles for that matter.
Does a scalene triangle have lines of semerty?
Scalene triangle means that all 3 sides of the triangle are different lengths, so, no.
