All have 4 sides. That’s what I would put. Good luck and don’t copy links they’re most likely viruses
Answer:
The answer is

Step-by-step explanation:
Area of a triangle is given by

From the question
base = 18
height = 6
So we have

We have the final answer as
<h3>54 units²</h3>
Hope this helps you
With mental math, you can perform equations quickly and efficiently. They also help you to develop your own strategies and solve more complex math equations. Hope this helps;)
Answer:
vertical and horizantal
Step-by-step explanation: