## What is a perpendicular line in a triangle?

Perpendicular bisector. The perpendicular bisector of a side of a triangle is a line perpendicular to the side and passing through its midpoint. The three perpendicular bisectors of the sides of a triangle meet in a single point, called the circumcenter .

## Is a triangle a perpendicular yes or no?

A right angle is exactly 90 degrees. … Squares and rectangles always have four right angles! A triangle will have perpendicular lines if it has a little square where two lines intersect to indicate there’s a right angle there or if someone tells you that the triangle is a right triangle. This is also true for trapezoids.

## What shape always has perpendicular lines?

Some shapes which have perpendicular lines are:
• Square.
• Right-angled triangle.
• Rectangle.

## Which lines are perpendicular lines?

Two distinct lines intersecting each other at 90° or a right angle are called perpendicular lines. Here, AB is perpendicular to XY because AB and XY intersect each other at 90°. The two lines are parallel and do not intersect each other.

## How do you prove that a line is perpendicular to a triangle?

If the two lines intersect at a point, the vertical angles formed are congruent. The intersecting lines either form a pair of acute angles and a pair of obtuse angles, or the intersecting lines form four right angles. When the lines meet to form four right angles, the lines are perpendicular.

## How many perpendicular lines does a triangle have?

two perpendicular lines
A triangle is a geometric shape that always has three sides and three angles. Triangles have zero pairs of parallel lines. They usually have zero pairs of perpendicular lines. Only one type of triangle, the right triangle, does have two perpendicular lines.

## Which shape has perpendicular sides?

As we mentioned before, right triangles have perpendicular sides, rectangles have both perpendicular and parallel sides, but other quadrilaterals might not. A regular pentagon has no parallel or perpendicular sides, but a non-regular pentagon might have parallel and perpendicular sides.

## Is a trapezoid perpendicular?

Right trapezoids” have one side which is perpendicular to the bases, creating two right angles. Isosceles trapezoids have two sides which are equal sized and have the same angles between themselves and the bases.

## Does a triangle have equal sides?

In geometry, an equilateral triangle is a triangle in which all three sides have the same length. In the familiar Euclidean geometry, an equilateral triangle is also equiangular; that is, all three internal angles are also congruent to each other and are each 60°.
Equilateral triangle
Area
Internal angle (degrees) 60°

## Which figure Cannot have perpendicular line segments?

As we mentioned before, right triangles have perpendicular sides, rectangles have both perpendicular and parallel sides, but other quadrilaterals might not. A regular pentagon has no parallel or perpendicular sides, but a non-regular pentagon might have parallel and perpendicular sides. It all depends on the polygon.

## What makes a triangle a right triangle?

A right triangle is a triangle in which one angle is a right angle. The relation between the sides and angles of a right triangle is the basis for trigonometry. The side opposite the right angle is called the hypotenuse (side c in the figure). The sides adjacent to the right angle are called legs (sides a and b ).

## Can a triangle be isosceles?

An isosceles triangle therefore has both two equal sides and two equal angles. The name derives from the Greek iso (same) and skelos (leg). A triangle with all sides equal is called an equilateral triangle, and a triangle with no sides equal is called a scalene triangle.

## Do all triangles equal 180?

The angle sum of a triangle will always be equal to 180°. The angle sum of a quadrilateral is equal to 360°, and a triangle can be created by slicing a quadrilateral in half from corner to corner. Since a triangle is essentially half of a quadrilateral, its angle measures should be half as well. Half of 360° is 180°.

## Is this a triangle?

All you have to do is use the Triangle Inequality Theorem, which states that the sum of two side lengths of a triangle is always greater than the third side. If this is true for all three combinations of added side lengths, then you will have a triangle.

## Can a right triangle be equilateral?

In an equilateral triangle, all the sides are equal. If we use the longest side theorem which say in the triangle the longest side is across the largest angle. Since all the sides are equal then the angles must be equal too. So we can’t have an Right angled equilateral triangle.

## What is a triangle with only 2 equal sides called?

In geometry, an isosceles triangle is a triangle that has two sides of equal length. … The two equal sides are called the legs and the third side is called the base of the triangle.

## What are the 3 types of triangle?

There are different names for the types of triangles. A triangle’s type depends on the length of its sides and the size of its angles (corners). There are three types of triangle based on the length of the sides: equilateral, isosceles, and scalene.

## Can a right triangle with sides 6cm 10cm and 8cm be formed?

So yes it can form aright angle triangle

## Is a scalene triangle and isosceles triangle?

A triangle is scalene if all of its three sides are different (in which case, the three angles are also different). If two of its sides are equal, a triangle is called isosceles. … A scalene triangle is uneven in the sense that all three sides are of different lengths.

## What triangle is both scalene and right?

Note: It is possible for a right triangle to also be scalene or isosceles. An obtuse triangle has one angle measuring more than 90º but less than 180º (an obtuse angle).