 # What Are The Two Legs Of A Right Triangle?

## What are legs of a right triangle?

A leg of a triangle is one of its sides.

For a right triangle, the term “leg” generally refers to a side other than the one opposite the right angle (which is termed the hypotenuse).

Legs are also known as catheti..

## How can you determine which leg of a right triangle is the hypotenuse?

The hypotenuse is always opposite the right angle and it is always the longest side of the triangle. To find the length of leg a, substitute the known values into the Pythagorean Theorem. Solve for a2.

## Are the legs of a right triangle equal?

He proved that, for a right triangle, the sum of the squares of the two sides that join at a right angle equals the square of the third side. … The two shorter sides are usually called “legs.” This formula is called the Pythagorean Theorem in honor of Pythagoras.

## How do you find a missing side of a right triangle?

How to find the sides of a right triangleif leg a is the missing side, then transform the equation to the form when a is on one side, and take a square root: a = √(c² – b²)if leg b is unknown, then. b = √(c² – a²)for hypotenuse c missing, the formula is. c = √(a² + b²)

## Is Pythagorean theorem only for right triangles?

Pythagoras’ theorem only works for right-angled triangles, so you can use it to test whether a triangle has a right angle or not.

## How do you find the length of a 30 60 90 Triangle?

30-60-90 Triangle RatioShort side (opposite the 30 degree angle) = x.Hypotenuse (opposite the 90 degree angle) = 2x.Long side (opposite the 60 degree angle) = x√3.

## Does 4 5 6 make right triangles?

If you multiply the sides by any number, the result will still be a right triangle whose sides are in the ratio 3:4:5. For example 6, 8, and 10.

## Do the segments 15 12 and 9 form a right triangle?

Which set of sides could make a right triangle? Explanation: By virtue of the Pythagorean Theorem, in a right triangle the sum of the squares of the smaller two sides equals the square of the largest side. Only 9, 12, and 15 fit this rule.

## Does 20 25 and 15 represent a right triangle?

The largest length is always the hypotenuse. If we were to multiply any triple by a constant, this new triple would still represent sides of a right triangle. Therefore, 6, 8, 10 and 15, 20, 25, among countless others, would represent sides of a right triangle.

## What are the 3 sides of a right triangle?

In a right triangle, the hypotenuse is the longest side, an “opposite” side is the one across from a given angle, and an “adjacent” side is next to a given angle. We use special words to describe the sides of right triangles.

## How do you calculate a2 b2 c2?

The formula is A2 + B2 = C2, this is as simple as one leg of a triangle squared plus another leg of a triangle squared equals the hypotenuse squared.

## Does 5/12/13 make a right triangle?

The best known triple is 3-4-5, with 5-12-13 being the next most recognized. Any triangle composed of sides of lengths that match the Pythagorean triple will be a right triangle. That means our triangle has a 90 degree angle for angle C. … For our triangle we now know that a = 5, b = 12, c = 13 and C = 90 degrees.

## What do all right triangles have in common?

Since the three interior angles of a triangle add up to 180 degrees, in a right triangle, since one angle is always 90 degrees, the other two must always add up to 90 degrees (they are complementary). The side opposite the right angle is called the hypotenuse. The sides adjacent to the right angle are the legs.

## What are the 2 types of special right triangles?

There are three types of special right triangles, 30-60-90 triangles, 45-45-90 triangles, and Pythagorean triple triangles.

## What makes a right triangle?

A right triangle (American English) or right-angled triangle (British English) is a triangle in which one angle is a right angle (that is, a 90-degree angle). … The side opposite the right angle is called the hypotenuse (side c in the figure).

## How many right angles are in a right triangle?

The right triangle has one 90 degree angle and two acute (< 90 degree) angles. Since the sum of the angles of a triangle is always 180 degrees...

## How do you find the length of a triangle given two sides and an angle?

Solving SAS Trianglesuse 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.