What is the altitude of an obtuse triangle?

What is the altitude of an obtuse triangle?

For an obtuse-angled triangle, the altitude is outside the triangle. For such triangles, the base is extended, and then a perpendicular is drawn from the opposite vertex to the base.

Where do altitudes meet for an obtuse triangle?

orthocenter
The point, at which the lines containing the altitudes of a obtuse triangle intersect called orthocenter, is always outside the triangle.

Is the altitude of an isosceles triangle also the median?

In an isosceles triangle (where base is the side which is not equal to any other side): – the altitude drawn to the base is the median and the angle bisector; – the median drawn to the base is the altitude and the angle bisector; – the bisector of the angle opposite to the base is the altitude and the median.

What is in obtuse angle?

Obtuse angles measure more than 90 degrees.

How do you find the altitude of a triangle with coordinates?

1. If you know the three vertices points, it is easy to calculate the area.
2. Once you have found the area of the triangle, you will need to find the length of each side and then use area = 1/2 x base x height to calculate the altitude to each of the sides.
3. Altitude = 2 x area / base.

Is the median of an isosceles triangle also the altitude?

– the median drawn to the base is the altitude and the angle bisector; – the bisector of the angle opposite to the base is the altitude and the median. – If median drawn from vertex A is also the angle bisector, the triangle is isosceles such that AB = AC and BC is the base. Hence this median is also the altitude.

How do you calculate the altitude of a triangle?

– A = Area of the triangle – b = Length of the base of the triangle – h = Height of the base of the triangle

How do you calculate the angle of an isosceles triangle?

Start with a side and an angle. If you know some trigonometry,you can find the area of an isosceles triangle even if you don’t know the length of

Divide the isosceles into two right triangles. Draw a line down from the vertex between the two equal sides,that hits the base at a right angle.

Use trigonometry to find the value of h.

How do you solve an isosceles triangle?

– Given arm a and base b : area = (1/4) * b * √ ( 4 * a² – b² ) – Given h height from apex and base b or h2 height from other two vertices and arm a : area = 0.5 * h * b = 0.5 * h2 – Given any angle and arm or base.

What are the rules of an isosceles triangle?

The two equal sides of an isosceles triangle are called the legs of the triangle,and the third side is called the base of the triangle.

The vertex of the triangle that is opposite the base is called the apex.

The angle at the apex of the triangle is called the vertex angle.