There are four (4) diagonals: 3 face diagonals and one space diagonal. We assume you are interested in the space diagonal.
The face diagonal of the 3×4 face has length
d₃₄ = √((3 ft)² +(4 ft)²) = √(25 ft²) = 5 ft
Taking the 5 ft edge and the 5 ft face diagonal as sides of the triangle with the space diagonal as its hypotenuse, we find the length of the space diagonal to be
d = √((5 ft)² +(5 ft)²)
d = 5√2 ft
The space diagonal of the rectangular solid is 5√2 ft ≈ 7.07 ft.
5ft, 6 in. = 66 in
66 x 4 = 264 in.
264 ÷ 12 = 22
Answer: A. 22 ft
The area is the product of length and width.
.. area = length * width
.. 61 5/8 = (7 +7 1/2) * width
.. (61 5/8)/(14 1/2) = width = 4 1/4 . . . . feet
The plywood was 4 feet 3 inches wide.
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A calculator that works with fractions figures this nicely. By hand, you might compute it as
.. 61 5/8 = (8*61 +5)/8 = 493/8
.. 14 1/2 = (2*14 +1)/2 = 29/2
.. (61 5/8)/(14 1/2) = (493/8)/(29/2) = (493/8)*(2/29) = 493/(4*29) = 493/116
.. 493/116 = 4 +29/116 = 4 +29/(4*29) = 4 1/4
Answer:
Idek
Step-by-step explanation:
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The answer is 16/49, because the ratio of length BE to ED is 4:7, hence area ratio is square of length ratio.