## What type of triangle is 120 degrees?

isosceles triangle
An isosceles triangle has an angle that measures 120 degrees.

What is the angle of 120 degree called?

Obtuse Angle Measure = (180 – acute angle measure) In the picture above, line segment DO intersects line segment OQ at point O and forms an angle DOQ measuring 120°. Thus, it is an obtuse angle.

### Can a triangle have an angle of 120?

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.

How do you make a 120 degree angle?

Constructing a 120° Angle: 120° angle can be constructed using the logic that 60° + 120° = 180°. Thus, we can understand that in order to construct 120° we can construct 60° angle and then further extend one of its arms as shown below in the figure.

#### How many 120 degree angles does it take to make a full turn?

There are 120 degrees in a third of a full turn. To determine this, you need to start with a full turn which is 360 degrees. If a full turn is 360…

What is a triangle with 2 equal angles?

Isosceles. An isosceles triangle can be drawn in many different ways. It can be drawn to have two equal sides and two equal angles or with two acute angles and one obtuse angle.

## Is a 120 degree angle obtuse?

An obtuse angle is a type of angle whose degree measurement is more than 90° but less than 180°. Examples of obtuse angles are: 100°, 120°, 140°, 160°, 170°, etc.

What is the ratio for a 30 60 90 triangle?

In 30 60 90 triangle the ratios are: 1 : 2 : 3 for angles (30° : 60° : 90°) 1 : √3 : 2 for sides (a : a√3 : 2a)

### How do you find the angle of a triangle?

Finding the measure of the angles of an equilateral triangle is the simplest of the calculations to do when it comes to triangles. This is because you simply need to divide 180 by 3 and get 60. When you have a triangle where all three sides are equal, the angles will all be equal as well.

How do you solve triangles?

To solve an SAS triangle use The Law of Cosines to calculate the unknown side, then use The Law of Sines to find the smaller of the other two angles, and then use the three angles add to 180° to find the last angle.

#### How do you measure a triangle?

Each small triangle is exactly half its small rectangle. In other words: the size of our triangle is exactly half the size of the rectangle. So, if you want to measure a triangle, you just multiply its base \\(b\\) times its height \\(h\\), and then divide by two.