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# What is the formula for 30 60 90 triangle?

## What is the formula for 30 60 90 triangle?

The sides of a 30-60-90 triangle are always in the ratio of 1:√3: 2. This is also known as the 30-60-90 triangle formula for sides y: y√3: 2y.

What is a bisector of a right angle?

An angle bisector of an angle of a triangle divides the opposite side in two segments that are proportional to the other two sides of the triangle.

How do you find the length of an angle bisector in a right triangle?

The length of the angle bisector of a standard triangle such as AD in figure 1.1 is AD2 = AB · AC − BD · DC, or AD2 = bc [1 − (a2/(b + c)2)] according to the standard notation of a triangle as it was initially proved by an extension of the angle bisector up to the circumcircle of the triangle.

### What are the properties of the angle bisectors in a triangle?

What is the Property of Angle Bisector of Triangle? The property of the angle bisector of a triangle states that the angle bisector divides the opposite side of a triangle in the ratio of its adjacent sides.

What is bisector in triangle?

An angle bisector is a straight line drawn from the vertex of a triangle to its opposite side in such a way, that it divides the angle into two equal or congruent angles. Angle Bisector Theorems of Triangles.

What are the properties of 30 60 90 triangle?

A 30-60-90 triangle is a right triangle with angle measures of 30º, 60º, and 90º (the right angle). Because the angles are always in that ratio, the sides are also always in the same ratio to each other.

#### What happens if you bisect a right triangle?

The Angle-Bisector theorem states that if a ray bisects an angle of a triangle, then it divides the opposite side into segments that are proportional to the other two sides.

How long is the bisector of the right angle?

In a right angled triangle, the legs adjacent to the right angle are equal to a and b. Prove that the length of the bisector (of the right angle) is equal to a⋅b⋅√2a+b.

How do you find the angle bisector?

An angle bisector divides an angle into two equal parts. So, to find where the angle bisector lays, divide the number of degrees in the angle by 2.

## What is the bisector of 90?

The angle formed by a perpendicular bisector is 90°. A perpendicular bisector is a line segment that divides a line segment into two parts that are equal and makes an angle of 90°.