3 ft 4 inches is 36 in + 4 in = 40 in. The simplified version of 40in is 2sqrt10 inches.
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3 square feet = 3 ft x 1 ft = 36 in x 12 in = 432 sq in
24 in * 36 in = 2 ft * 3 ft = 6 sq feet.
Convert the inches to feet and work out the volume of the cuboid with base area 110 sq ft and height of 3 inches: 12 in = 1 ft → volume = 110 sq ft x 3 in = 110 sq ft x 3/12 ft = 27 ½ cu ft (= 27.5 cu ft)
Square root of 6
The square root of 3 times the negative square root of 3 can be calculated by multiplying the two square roots together. This results in -3, as the square root of 3 multiplied by the square root of 3 is the square root of 9, which simplifies to 3. Multiplying this by the negative sign gives us -3.