 # Quick Answer: Does A Triangle Have A Right Angle?

## What are 3 attributes of a triangle?

Triangles are polygons with the least possible number of sides (three).

The three internal angles of a triangle always add to 180 degrees.

An equilateral triangle has three sides of equal length and three equal angles.

An isosceles triangle has two sides of equal length and two equal angles..

## What do you call a triangle with 2 equal sides?

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. It is easy to work out the missing angles of an isosceles triangle by looking for the angles that should be equal.

## What are the 7 types of triangle?

To learn about and construct the seven types of triangles that exist in the world: equilateral, right isosceles, obtuse isosceles, acute isosceles, right scalene, obtuse scalene, and acute scalene.

## How many right angles does a triangle have?

one right angle1 Answer. Daniel L. A right triangle has only one right angle.

## What are the types of right triangles?

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

## What is the 3rd side of a triangle?

The hypotenuse is always opposite the right angle and it is always the longest side of the triangle.

## Can a triangle have 3 right angles?

No, real, triangle can have three right angles. … The sum of the angles formed must equal 180° and the sum of the length of two sides must be greater than the length of the third. A right angle takes up half of the 180°, so the remaining 90° must be split between the other two angles.

## Do all triangles have right angles?

A right triangle may be isosceles or scalene. In an obtuse triangle, one angle is greater than a right angle—it is more than 90 degrees. … In an acute triangle, all angles are less than right angles—each one is less than 90 degrees. An acute triangle may be equilateral, isosceles, or scalene.

## Which is the shortest side of right angle triangle?

However, if the angle you already know is the medium one, then the shortest side is adjacent to it. The hypotenuse is always the longest side in a right triangle because it is opposite of the largest angle, the ninety degree angle. Comment on Charlotte Auen’s post “The shortest side is the one opposite the smallest…”

## What is the maximum number of right angles a triangle can have?

Explanation: A triangle has 180o as the sum of all its internal angles, no more, no less. If one angle is 90o , then you can have two 45o angles, one 30o and a 60o , an 81o and a 9o – pretty much any combination of numbers adding up to 90 to make the total 90+90=180 .

## Does a triangle have 4 right angles?

A right triangle has one angle equal to 90 degrees. A right triangle can also be an isosceles triangle–which means that it has two sides that are equal. A right isosceles triangle has a 90-degree angle and two 45-degree angles. … One of the most famous is the “3, 4, 5 triangle.”

## How do you figure out if a triangle is a right triangle?

A right triangle is a triangle in which one of the angles is a 90∘ angle. The “square” at the vertex of the angle indicates that it is 90 degrees. A triangle can be determined to be a right triangle if the side lengths are known. If the lengths satisfy the Pythagorean Theorem (a2+b2=c2) then it is a right triangle.

## What is a true triangle?

A triangle has three sides, three vertices, and three angles. The sum of the three interior angles of a triangle is always 180°. The sum of the length of two sides of a triangle is always greater than the length of the third side. A triangle with vertices P, Q, and R is denoted as △PQR.

## Can a triangle have one obtuse and right angle?

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. Therefore, an obtuse-angled triangle can never have a right angle; and vice versa. The side opposite the obtuse angle in the triangle is the longest.

## What are the other two angles in a right triangle?

A right triangle has one angle of 90. Thus, the sum of the other two angles will be 90. Thus, the first angle is and the second angle is .