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What is meant by the orthcentre of a triangle?
The 'orthcentre' of a triangle is at the point where the 3 perpendicular altitudes intersect within the triangle.
Does a salene have a right angle?
If you meant scalene triangle, then it may have a right angle. By definition, a scalene triangle is a triangle with no angle or side measures that are the same. For example, a 30,60,90 triangle is scalene.
How many obtuse angles can a Right Traingle Have?
Assuming that a traingle is meant to be a triangle, then the answer is none.
Dilating a triangle changes the shape of the triangle but does not change its shape True or false?
As written, the statement is false. You can't have it both ways. I suspect you meant to write that dilating a triangle changes the size or area of the triangle but does not change its shape. That would be true.
Sides of traingle giving equal permeter and area?
I am assuming that "traingle" is meant to be triangle and "permeter" is meant to be perimeter.The area of a triangle cannot be equal to its perimeter because the area is a measure in 2-dimensional space whereas a perimeter is a 1-dimensional measure. So their dimensions will always be different.Furthermore, the area of a triangle is not determined by its perimeter. The area of a triangle can be changed - without affecting its perimeter - simply by changing the angles.
