chops85
14.02.2022 •
Mathematics
A metal wire is shaped in the form of a rectangle. The length of the rectangle is 7 cm and the breadth of the rectangle is 4 cm. The same wire is then formed into a circle. Find the area of the circle. (π≈ 22/7)
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Ответ:
38.5 cm^2
Step-by-step explanation:
Length of wire = 7*2 + 4*2 = 22 cm
Radius of Circle = 22/(2pi) = 3.5 cm
Area of Circle = (3.5)^2*pi = 38.5 cm^2
Ответ:
-2x+8=x-1
add 2x to both sides
8=3x-1
add 1
9=3x
divide 3
3=x
sub
y=x-1
y=3-1
y=2
(x,y)
(3,2)