What is a triangle with one angle greater than 90 degrees?

What is a triangle with one angle greater than 90 degrees?

An obtuse triangle (or obtuse-angled triangle) is a triangle with one obtuse angle (greater than 90°) and two acute angles. Since a triangle’s angles must sum to 180° in Euclidean geometry, no Euclidean triangle can have more than one obtuse angle.

What type of triangle has no congruent sides?

A scalene triangle is a triangle with no congruent sides and no congruent angles. Ex. An obtuse triangle is a triangle that has an obtuse angle.

Which triangle has one angle greater than a right angle?

obtuse triangle
Obtuse. An obtuse triangle has three different angles, with one angle greater than 90°. None of its sides are equal in length.

What is a triangle with one 90 degree angle called?

‘upright angle’), is a triangle in which one angle is a right angle (that is, a 90-degree angle). The relation between the sides and other angles of the right triangle is the basis for trigonometry. The side opposite to the right angle is called the hypotenuse (side c in the figure).

Are all triangles 180 degrees?

The three interior angles of a triangle will always have a sum of 180°. A triangle cannot have an individual angle measure of 180°, because then the other two angles would not exist (180°+0°+0°). The three angles of a triangle need to combine to 180°.

Are all angles of triangle ABC smaller than 90 degrees?

In an obtuse triangle, if one angle measures more than 90°, then the sum of the remaining two angles is less than 90°. 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.

What angles have no congruent sides?

A triangle without any congruent sides or angles is called a scalene triangle.

What triangle always has 3 congruent sides?

Equilateral triangle
Equilateral triangle: A triangle with three congruent sides.

What is a triangle without right angle called?

Any triangle that is not a right triangle is an oblique triangle. Solving an oblique triangle means finding the measurements of all three angles and all three sides.

Is a scalene triangle a right triangle?

A scalene triangle is a triangle in which all three sides have different lengths. Also the angles of a scalene triangle have different measures. Some right triangles can be a scalene triangle when the other two angles or the legs are not congruent.

What is an oblique triangle?

An oblique triangle is any triangle that is not a right triangle. It could be an acute triangle (all threee angles of the triangle are less than right angles) or it could be an obtuse triangle (one of the three angles is greater than a right angle).

Is there a triangle that doesn’t add up to 180?

A hyperbolic triangle, whose sides are arcs of these semicircles, has angles that add up to less than 180 degrees. All the black and white shapes in the figure on the left are hyperbolic triangles.