Question unclear
Step-by-step explanation:
If it is a trapezoid, you can simply find the average of the two base lengths, but I can't help much without seeing the shape. Please add a picture of the shape.
Yes they are equivalent.The reason is if you expand them and simply them you will get the answer of 3x+5y+10.
Answer:
This is called a <u><em>parallelogram</em></u>
<u><em>Now, Area:</em></u>
Area = base * Height
Area = 4 * 3
Area = 12 cm²