# How do you find the area of a triangle with 3 coordinates?

## How do you find the area of a triangle with 3 coordinates?

How Do You Find the Area of a Triangle With 3 Coordinates? Area of triangle with 3 points is: A = (1/2) |x1 1 (y2 2 − y3 3 ) + x2 2 (y3 3 − y1 1 ) + x3 3 (y1 1 − y2 2 )|, where (x1 1 ,y1 1 ),(x2 2 ,y2 2 ), and (x3 3 ,y3 3 ) are the coordinates of vertices of triangle.

Are the vertices of a right-angled triangle?

The vertex of a right angled triangle lies on the straight line 2x+y−10=0 and the two of vertices, at points (2,−3) and (4,1), then the area of triangle in sq.

### How find the area of a right triangle?

We usually represent the legs of the right-angled triangle as base and height. Thus, the formula for the area of a right triangle is, Area of a right triangle = 1/2 × base × height.

What is the formula of area of right angle?

Area of Right Angle Triangle = ½ (Base × Perpendicular) If one of the angles is 90° and the other two angles are equal to 45° each, then the triangle is called an Isosceles Right Angled Triangle, where the adjacent sides to 90° are equal in length.

#### How do you find the area of a right-angled triangle?

Area of one right triangle = 1/2 × l × w. We usually represent the legs of the right-angled triangle as base and height. Thus, the formula for the area of a right triangle is, Area of a right triangle = 1/2 × base × height.

How do we calculate the area of a triangle?

The area of a triangle is defined as the total region that is enclosed by the three sides of any particular triangle. Basically, it is equal to half of the base times height, i.e. A = 1/2 × b × h.

## Are edges and vertices the same?

Vertices, edges and faces A face is a flat surface. An edge is where two faces meet. A vertex is a corner where edges meet. The plural is vertices.

How do you find the area of a triangle when only one side is given?

To calculate the area of a triangle given one side and two angles, solve for another side using the Law of Sines, then find the area with the formula: area = 1/2 × ​b​ × ​c​ × sin(A).