ghwolf4p0m7x0
02.09.2019 •
Mathematics
Apoint in the figure is selected at random. find probability that the point will be in the shaded region
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Ответ:
Explanation:
The probability of finding the random point in the shaded region is:
P = area of the shaded region / total areaThe shaded region consists of two semicirles inside a square, with the diameters of the semicircles equal to the side length of the square:
Call 2r the side length, then r is the length of the radii of the semicircles:Area of one semicirle = (1/2) π r²Area of the two semicirles = 2 × (1/2) π r² = π r²Area of the square = (2r)² = 4r²P = area of the two semicirles / area of the square = π r² / 4r² = π/4 ≈ 0.79Ответ:
sorry i would like to do this but i am not a maths expert