Answer:
Area of semicircle is

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We know one side of the smaller rectangle, 6ft. Therefore the longer side is 78/6 ft = 13ft.
The ratio of small to large side is 6:10, so the larger rectangles other length is (13 / 6) * 10 ft = 21.666... ft.
Thus the area of the larger rectangle is 21.666... * 10 = 216.666... ft^2, and hence to the nearest whole number it is 217 ft^2
5.5/12 = x/60
One hour/ 12 minutes = 5
5.5•5=27.5
Caribe reads 27.5 pages per hour.
To answer this you need to multiply 20 by 20. this gives 400cm
or you can also square 20