# What type of angle is 80 degrees?

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## What type of angle is 80 degrees?

acute angle-an angle between 0 and 90 degrees. right angle-an 90 degree angle. obtuse angle-an angle between 90 and 180 degrees.

Is an 89 degree angle acute?

Since acute angles are angles with a measure less than 90°, the largest integer acute angle will have a measure of 89°.

### Is 180 acute or obtuse?

Summary

Angle Type Angle measure
Acute angle Greater than 0 °, Less than 90°
Right angle 90°
Obtuse angle Greater than 90°, less than 180°
Straight angle 180°

Can an acute triangle be 90 degrees?

Acute triangles have NO angles greater than or equal to 90 degrees — all their angles are less than 90 degrees. (Acute triangles have all acute angles.)

## Is 80 degrees an acute angle?

Acute angles measure less than 90 degrees. Right angles measure 90 degrees. Obtuse angles measure more than 90 degrees.

What is an obtuse angle degree?

Obtuse angles measure more than 90 degrees.

### Is 180 degrees an obtuse angle?

Angles between 90 and 180 degrees (90°< θ <180°) are known as obtuse angles. Angles that are 90 degrees (θ = 90°) are right angles. Angles that are 180 degrees (θ = 180°) are known as straight angles.

Which angles are acute?

An acute angle is an angle that measures between 90° and 0°, meaning it is smaller than a right angle (an “L” shape) but has at least some space between the two lines that form it. A “V” shape is an example of an acute angle.

## What is an example of an obtuse angle?

Examples of Obtuse Angles We know that angles measuring greater than 90° and less than 180° are called obtuse angles. Therefore, angles that measure 145°,150°,178°,149°, 91° are considered as obtuse angle examples.

Which triangle is obtuse?

An obtuse-angled triangle is a triangle in which one of the interior angles measures more 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.

### What is acute angle example?

An acute angle is a type of angle that measures less than 90°. For example, when the time is 11 o’clock, the angle formed between the hour hand and the minute hand is an acute angle. In other words, 30°, 40°, 57°, and so on are all acute angles.

What’s the difference between acute and obtuse angles?

Some of the major differences between acute and obtuse angles are tabulated below: The measure of an angle which is less than 90 degrees (right angle) is called acute angle. The measure of an angle which is greater than 90 degrees (right angle) and less than 180 degrees is called obtuse angle. A triangle can have more than one acute angle.

## How many degrees are in an acute angle?

From the above figure, we can differentiate between the three angles. The first figure shows an acute angle measuring 62 degrees (less than 90 degrees), the second figure shows a right angle measuring 90 degrees and the third figure shows an obtuse angle measuring 135 degrees (more than 90 degrees).

What’s the difference between a reflex and an obtuse angle?

Obtuse Angle – An angle more than 90 degrees and less than 180 degrees. Straight Angle – An angle that is exactly 180 degrees. Reflex Angle – An angle greater than 180 degrees and less than 360 degrees.

### Can a triangle have more than one acute angle?

The measure of an angle which is less than 90 degrees (right angle) is called acute angle. The measure of an angle which is greater than 90 degrees (right angle) and less than 180 degrees is called obtuse angle. A triangle can have more than one acute angle. A triangle cannot have more than one obtuse angle.