Question

Find the area of the triangle formed by the points (1, 2), (-3, 4) and (-5, -6).​

Answer 1

Step-by-step explanation:

We know that,

Area of triangle

$= \frac{1}{2} (x1(y2 - y3) +x2(y3 - y1) + x3(y2 - y1))$

$\frac{1}{2} (1(4 + 6) - 3( - 6 - 2) - 5(4 - 2)$

$\frac{1}{2} ( {10 } + 24 - {10})$

$\frac{1}{2} \times 24 + 0$

$12 \: {cm}^{2}$

Answer 2

Answer:

This can be solved by the distance formula of lesson coordinate geometry of class 10