Answer:
The area of rectangle is 42 square unit.
Step-by-step explanation:
We are given a rectangle shown in diagram.
We need to find the area of rectangle.
First we have to find the L and B of the rectangle.
Using coordinate system find the coordinate of vertex of rectangle.
Using distance formula to find the distance of leg of rectangle.
A(2,-1) B(9,-8) C(12,-5)
Distance formula:
Hence, The area of rectangle is 42 square unit.