# Can a right angle also be obtuse?

## Can a right angle also be obtuse?

A right triangle cannot be obtuse because of the sizes of the angles therein.

## Why can’t a right triangle have an obtuse angle?

When an angle of a triangle is 90 degrees, the triangle cannot have an obtuse angle. The other two must each be less than 90 degrees (90 deg + 89 deg + 1 deg = 180 deg). It therefore follows that they must both be less than 90 degrees and so must both be acute.

What makes an angle right acute or obtuse?

Acute Angle – An angle less than 90 degrees. Right Angle – An angle that is exactly 90 degrees. Obtuse Angle – An angle more than 90 degrees and less than 180 degrees. Straight Angle – An angle that is exactly 180 degrees.

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

A right triangle has one angle that’s 90° and a corner that looks like an L. Obtuse triangles have one angle that’s greater than 90°. In acute triangles, all the angles are less than 90°.

### Can an obtuse triangle and a right triangle be similar?

A triangle cannot be right-angled and obtuse angled at the same time. Since a right-angled triangle has one right angle, the other two angles are acute.

Does two right angles make an obtuse angle?

An obtuse angle is an angle that measures more than 90 degrees and less than 180 degrees.

#### How many degrees is an obtuse angle?

An obtuse angle refers to an angle that is more than 90 degrees but less than 180 degrees. These angles extend past a right angle. Learn more about obtuse angles here. It refers to any angle that is between a right angle and a straight angle. Moreover, obtuse angles are also called as blunt angles.

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

Acute angle has a smaller measure than right one, while obtuse angle has a bigger measure than right one.

Which shape has acute and obtuse angles?

Acute and obtuse triangles. An acute triangle (or acute-angled triangle) is a triangle with three acute angles (less than 90°). An obtuse triangle (or obtuse-angled triangle) is a triangle with one obtuse angle (greater than 90°) and two acute angles.

## What is less than a right angle?

Half a full rotation is called a straight angle, and a quarter of a full rotation is called a right angle. An angle less than a right angle is called an acute angle, an angle greater than a right angle (but less than a straight angle) is called an obtuse angle, and an angle greater than a straight angle (but less than a full angle)…