A couple wants to install a square mirror that has an area of 500 square inches. To the nearest tenth of an inch, what length of wood trim is needed to go around the mirror?
Answer (2)
A re a o f s q u a re : A = x 2 x − s i d e o f s q u a re 500 = x 2 ∣ x = 500 = 5 ∗ 100 = 5 ∗ s q r t 100 = 10 5 ≈ 22 , 4 T h e l e n g t h o f w oo d t r im s h o u l d b e e q u a l t o 22 , 4 in c h .
To find the wood trim length for a square mirror with an area of 500 square inches, we calculate the side length as approximately 22.4 inches. Then, using the perimeter formula for a square, we find the total trim length to be about 89.6 inches.
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