Mathematics · Estimating and Costing

A room with inner-to-inner dimensions 4.8 m × 4.8 m is built with 20 cm thick walls all around. Calculate the central line length of the walls.

Verified Solution4 OptionsUpdated: October 2026👁️1 View

115.9 m
214 m
322.6 m
420 m✓

Correct answer

20 m

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A room with inner-to-inner dimensions 4.8 m × 4.8 m is built with 20 cm thick walls all around. Calculate the central line length of the walls.

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A room with inner-to-inner dimensions 4.8 m × 4.8 m is built with 20 cm thick walls all around. Calculate the central line length of the walls.

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