HOW IS IT NOT 16 SOMEONE HELP

asked May 7, 2023 137k views

3 votes

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3 votes

Answer:

18.7 units

Explanation:

Diagonal² = 1² + 1²

= 2

$\sf diagonal = √(2) = 1.41\\$

Perimeter = 3 + 3 + 9 *1.41

= 3 + 3 + 12.69

= 18.7 units

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