# Angles that measure 91 degrees and 89 degrees?

91 degrees is an obtuse angle.

89 degrees is an acute angle.

### Does a trinangle have 2 obtuse angles?

The sum of the internal angles of a Euclidian (planar) triangle is 180 degrees, or PI radians. An obtuse angle is greater than 90 degrees or PI/2 radians. Therefore, there is not enough angle for two obtuse internal angles. For example, if a triangle has one angle of 91 degrees, then it has 180-91=89 degrees left for the other angles, which is not enough for another obtuse angle.

### What is the measure of an interior angle of a regular quadrilateral?

You have to give more info. A regular quadrilateral can mean a square, or a rhombus. A square has 90 degrees and a rhombus can have from1-89 degrees or 91-179 degrees * * * * * No, that is not correct. Regular, in the context of a polygon, does not only mean that all ht esides are congruent. It also means that all angles are also congruent. Consequently, a rhombus is not a regular quadrilateral…

### What angles are greater than 90 degree's but lesss than 180?

An angle whose degree measure is greater than 90 but less than 180 is simply in that range. Examples would be 91 degrees, 104.5 degrees, 179.25 degrees, and so on. There is no specific name for angles in this category, but it falls into the broader category of obtuse angles, angles with measures greater than 90.

### Can an obtuse triangle have more than one obtuse angle?

No, an obtuse triangle can not have more than one obtuse angle. This is because all of the angles have to add up to 180 and the smallest obtuse angle you can have is 91 degrees. So 180-91=89. 89 degrees is the angle that you need to complete the triangle and it is an acute angle. Therefore, you can not have more than one obtuse angle in an obtuse triangle.

### Why can't a quadrilateral have more than three obtuse angle?

because if it has more than three obtuse angles than its not a quadrilateral. This is because a quadrilateral has 360 degrees, right? Well an obtuse angle is an angle greater than 90 degrees. That being said the smallest obtuse angle you can have is 91 degrees. If you have four obtuse angles, then the sum of them is greater than 360 (ex: 91+91+91+91=364) and it's geometrically impossible to draw a quadrilateral with 4 obtuse…

### What was the name of the angle that measure less than 180 degree?

There are two types of angles that are smaller than 180 degrees: acute and obtuse. Acute angles are those that are smaller than a right angle (90 degrees) and obtuse angles are those that are larger than a right angle but smaller than 180(ex: 100 degrees, 91 degrees, etc.) Obtuse and acute angles are easy to identify without actually using a protractor; they are usually exaggerated on tests and assignments. On top of that 180…

### What is the difference between scalene obtuse and acute triangles?

There are two questions that have been mixed up here. There are three "main" types of angle: Acute, Obtuse and Reflex. Acute angles are from 1 to 89 degrees, Obtuse angles from 91 to 179 and Reflex angles anything over 181 degrees. An angle of 90 degrees is a right angle, and an angle of 180 degrees is just a line. There are three types of triangle: Equilateral, Isosceles and Scalene. Equilateral triangles have all…

### What is the measure of and obtuse angle and acute angle?

An obtuse angle is anything that measures between 91-179 degrees. (because 90 degrees is a right angle and 180 is a straight angle) An acute angle is anything that is lower than 90 degrees. ** TIP: I remember acute angles because it has the word cute in it and I think "Oh it's so cute." I can remember right angles because "They are always right, proper, and tall." Straight angles look like a straight line…