Mathematics: Rectangle abcd has vertices a(-3, 1), b(5, 7), c(9, 4), and d(1, -2). calculate the area of rectangle abcd.

Rectangle abcd has vertices a(-3, 1), b(5, 7),

izzy1671

10.03.2022

It's not a rectangle. Look at the picture.

It is a parallelogram.

The area of the red rectangle:

$A_{\boxed{ \ }}=(4+8)(6+3)=(12)(9)=108$

The areas of the right triangles:

$A_1=\dfrac{1}{2}(3)(4)=6\\\\A_2=\dfrac{1}{2}(6)(8)=24$

The area of a parallelogram:

$A=A_{\boxed{ \ }}-(2A_1+2A_2)\\\\A=108-(2\cdot6+2\cdot24)=108-(12+48)=108-60=48$

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khandjia

06.04.2023

Answer is 0

Step-by-step explanation:

Cus math never existed xD

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