Roger is tiling the floor of his bathroom with ceramic squares. The floor measures 84.0 inches by 84.0 inches, and each tile covers 4.00 x 4.00 square inches. He will need
to leave a gap of 24.0 x 10.0 square inches in the tiling for the toilet. Gaps around the
edge will be covered later with trim. Assume the tiling will be done with whole tiles only.

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

arc length = 6.63311 ft.

step-by-step explanation:

the formula the arc measure is:

arc length s=2πr(c)/360

where:

c   is the central angle of the arc in degrees

r   is the radius of the arc

π   is pi, approximately 3.142

using the above formula we get

s =

thus we find that arc length of an arc for a circle of radius 20 feet and central angle 19 degrees is

6.63311 feet

ιт ιѕ:

125.28

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