Which of the following formulas can be used to calculate the area of a circle with diameter d?

Answer:
The last one
Step-by-step explanation:
To find an area of a circle its with the formula...
A = π [tex]r^{2}[/tex]
But since the diameter is given, and not the radius we need to divide the diameter by 2 (since half the diameter gives you the radius)
And the only one there that divides the diameter with the correct formula is the last one
Hope this helped!
Have a supercalifragilisticexpialidocious day!