Question

Please help me with the answer!

Answer 1

Answer:9

Step-by-step explanation:

Cause 9 times 9 is close to 81

Answer 2

Answer:

• The side of the square painting is 9 cm.

Step-by-step explanation:

We know that:

• Area = Side²
• √Area = Side
• Area = 81

Let's use the second formula.

Work:

• √Area = Side
• => √81 = Side
• => √9 x 9 = Side
• => 9 cm = side

Hence, the side of the square painting is 9 cm.

Hoped this helped.

$BrainiacUser1357$