What is the good definition of obtuse angle?

Definition of obtuse 1a : not pointed or acute : blunt. b(1) of an angle : exceeding 90 degrees but less than 180 degrees.

What is the definition of acute angle triangle?

An acute angle triangle (or acute-angled triangle) is a triangle in which all the interior angles are acute angles. To recall, an acute angle is an angle that is less than 90°.

What is obtuse-angled triangle Wikipedia?

Obtuse triangle, a triangle with an internal angle of between 90 and 180 degrees.

What is an obtuse angle example?

Obtuse Angle Degree Now we know that an angle that measures less than 180 degrees but more than 90-degrees is an obtuse angle. Some examples of obtuse angle degrees are 110°, 135°, 150°, 179°, 91°, and more. Hence, all angles that lie in the range of 90° to 180° are obtuse angles.

What is obtuse angle class7?

Obtuse Angle: If an angle is more than 90 degrees, then it is called Obtuse Angle.

What is isosceles obtuse triangle?

An isosceles obtuse triangle is a triangle in which one of the three angles is obtuse (lies between 90 degrees and 180 degrees) and the other two acute angles are equal in measurement. One example of isosceles obtuse triangle angles is 30°, 30°, and 120°.

What defines an isosceles triangle?

Definition of isosceles triangle mathematics. : a triangle in which two sides have the same length.

Which is obtuse angle in ABC?

Here, the triangle ABC is an obtuse triangle, as ∠A measures more than 90 degrees. Since ∠A is 120 degrees, the sum of ∠B and ∠C will be less than 90° degrees. Since ∠A = 120°, therefore, ∠B + ∠C= 60°. Hence, if one angle of the triangle is obtuse, then the other two angles with always are acute.

How do you find an obtuse triangle?

To find if a triangle is obtuse, we can look at the angles mentioned. If one angle is greater than 90° and the other two angles are lesser along with their sum being lesser than 90°, we can say that the triangle is an obtuse triangle. For example, ΔABC has these angle measures ∠A = 120°, ∠A = 40°, ∠A = 20°.

What angle is obtuse angle?

An obtuse angle is a type of angle that is always larger than 90° but less than 180°. In other words, it lies between 90° and 180°.

What is a obtuse triangle class 8?

The obtuse angle of a triangle is a triangle, where one of its angles of a triangle is greater than 90 degrees. An obtuse triangle may be an isosceles or scalene triangle. An equilateral triangle cannot be obtuse. The angle opposite to the obtuse angle is the longest side of the triangle.