Hello !
If you mist find the area of the rhombus,you need to calculate the length of the diagonals.
We have the rhombus ABCD.The diagonals are are AC and BD .
<span>Here's a formula to find out the distance between two points in the Cartesian system : (let's take randomly 2 point and their coordinates)
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M (m₁,m₂) ; N (n₁,n₂) ⇒ MN = \sqrt{ (m_{1} - n_{1})^{2} + (m_{2} - n_{2})^{2} } </span>
Now it's simple to calculate the diagonals :

The area is :
Answer: 60 u²
The representation is below.
Have a nice day :)
Answer: Your classmate incorrectly identified the sides that are proportional in the side-splitter theorem.
In this theorem, the segments formed on the traversal are proportional. However, in the diagram your friend is trying to prove that segments on the parallel lines are proportional. If he wanted to do that, he would need to have a different plan.
Answer:
12.3 – (-9.6) = 12.3 + 9.6
Step-by-step explanation:
You need 4 cups of flour, hope this helps!