An isosceles, possibly equilateral, triangle
1/2*base of triangle*height(the perpendicular)=Area of right angled triangle
multiply the base of the triangle by the height then halve the answer.
Using Pythagoras' Theorum: (height)^2 = (hypotenuse)^2 - (base)^2
An acute angled triangle, right angled triangle or obtuse angled triangle.
a scalene can be a right-angled triangle or a obtuse angled triangle or a acute angled triangle depending on the angles of the triangle.
area = base * height / 2;
acute angled triangle,right angled triangle,obtuse angled triangle,isosceles triangle,equilateral triangle, scalene triangle
The area of a triangle is one half base times height. In the case of a right triangle, the base is one leg and the height is the other leg. (The two legs being separated by the right angle.)
a right angled triangle is special because it is the only triangle that has a right angle with a dregree of 180.
The right-angled triangle.
A right-angled triangle can have equal sides, but does not have to. A right-angled triangle with two equal sides CANNOT be an equilateral triangle. A right-angled triangle cannot be an equilateral triangle.Divide a square along the diagonal, and you are left with two right-angled triangles with two sides of equal length.
An obtuse angled triangle is wider than a right angled triangle. It has 180 degree angles.