Question

1. $a = \frac{a + b + c}{3}$

Explanation:

Since the problem just presents the formula \( A=\frac{a + b + c}{3} \) without a specific question (like solving for a variable, evaluating with given values, etc.), we can't proceed with a solution. If you want to solve for a specific variable (e.g., solve for \( a \), \( b \), or \( c \)) or evaluate \( A \) with given \( a \), \( b \), \( c \) values, please provide that additional information.

For example, if we were to solve for \( a \):

Step1: Multiply both sides by 3

\( 3A = a + b + c \)

Step2: Subtract \( b \) and \( c \) from both sides

\( a = 3A - b - c \)

But without a specific task, we can't give a definite answer.

Answer:

Step1: Multiply both sides by 3

\( 3A = a + b + c \)

Step2: Subtract \( b \) and \( c \) from both sides

\( a = 3A - b - c \)

But without a specific task, we can't give a definite answer.