campbelldean
18.09.2019 •
Mathematics
The lengths of the sides of a triangle are in the extended ratio 1 : 2 : 5. the perimeter of the triangle is 32 ft. the length of the longest side is:
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Ответ:
x + 2x + 5x = 32
8x = 32
x = 32/8
x = 4
longest side = 5x = 5*4 = 20 ft
Ответ:
The formula for volume of a sphere is V = 4/3 x PI x r^3
r is 1/2 the diameter = 9 inches.
Volume = 4/3 x 3.14 x 9^3 = 3,052 cubic inches.