Question

Properties of obtuse angle

Answer 1

Obtuse Triangle Definition

An obtuse triangle is one that has an angle greater than 90°. Because all the angles in a triangle add up to 180°, the other two angles have to be acute (less than 90°). It's impossible for a triangle to have more than one obtuse angle.




Properties of Obtuse Triangles
1.The longest side of an obtuse triangle is the one opposite the obtuse angle vertex.
2.An obtuse triangle may be either isosceles (two equal sides and two equal angles) or scalene (no equal sides or angles).
3.An obtuse triangle has only one inscribed square. One of the sides of this square coincides with a part of the longest side of the triangle.
4.The area of any triangle is 1/2 the base multiplied by its height. To find the height of an obtuse triangle, you need to draw a line outside of the triangle down to its base (as opposed to an acute triangle, where the line is inside the triangle or a right anglewhere the line is a side).

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Answer 2

between 90to180 is known as obtuse angle
less than straight angle is known as obtuse angle
more than right angle is known as obtuse angle