Magda saw a triangular sign with a base of 4 feet and a height of 2.8 feet. she reasoned that if she first divided each dimension by 2 before multiplying them together, she would get the right area. is she correct? explain.

She is not correct, because she must multiply the base and the height of the triangle and then divide by 2.

Step-by-step explanation:

1. The formula for calculate the area of a triangle is shown below:

Where is the base and is the height.

2. Then, if she applied the method she reasoned, she'd obtain the following area:

 3. But actually, Magda should multiply the base and the height of the triangle and then divide by 2. Then, the correct area is:

1/800 is the right answer

$6.42

step-by-step explanation: