Find the area of the triangle with vertices at the points:

Question

Find the area of the triangle with vertices at the points: (2, 7) (1, 1) and (10, 8)

Philoid · Accepted Answer

Given: – Vertices of the triangle:

(2, 7) (1, 1) and (10, 8)

We know that,

If vertices of a triangle are (x₁,y₁), (x₂,y₂) and (x₃,y₃), then the area of the triangle is given by:

Now, substituting given value in above formula

Expanding along R₁

sq.units

Thus area of triangle is sq.units