Question

there are four points in the figure.how many triangles can be formed by joining the points by line segments? the point must be at the vertices of the triangles​

Answer 1

Answer:

3

Step-by-step explanation:

3

Answer 2

Answer:

Given,

There are four points in a figure.

Let assume that, none of points are co-linear.

We know that, to make a triangle we need three points.

so,

Number of picking three points from four points = number of triangles

Now,

$\rm \: number \: of \: triangles \: \: = ^4C_3 \\ \\ = \frac{4 \times 3 \times 2}{3×2×1} \\ \\ = 4$