Question

Area of triangle with points (7,7) (10,3) (7,3)

Answer 1

Answer:

$Area = 6$

Step-by-step explanation:

Given

$(x_1,y_1) = (7,7)$

$(x_2,y_2) = (10,3)$

$(x_3,y_3) = (7,3)$

Required

The area

This is calculated as:

$Area = \frac{1}{2}|x_1y_2 - x_2y_1 + x_2y_3 - x_3y_2 +x_3y_1 - x_1y_3|$

So, we have:

$Area = \frac{1}{2}|7*3 - 10*7 + 10*3 - 7*3 +7*7 - 7*3|$

Using a calculator, we have:

$Area = \frac{1}{2}|-12|$

Remove bracket

$Area = \frac{1}{2}*12$

$Area = 6$