Each of them is correct as they all found the area of the base and then multiplied it be the height. I personally would have done the third option because I like having all the items written out.
2538 is divisible by 9 and it comes out to be 282.
Answer:
A
Step-by-step explanation:
Given
x² = 27 ( take the square root of both sides )
x = ± 
= ± 
= ±
× 
= ± 3
→ A