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The largest possible circle is to be cut
from a 10-foot square board. What will
be the approximate area, in square feet,
of the remaining board (shaded region)?
( . A r = ≈ π π 2 and 3 14)
A 20
B 30
C 50
D 80
1. Find area of a circle
A r = ≈ π π 2 and 3 .14)
A = 3.14 * 5 ^2
A= 3.14 * 25
A= 78.5 ft ^2
2. Find area of the square
A=Lw
A= 10 times 10
A= 100 ft ^2
Radius; extending from the center of a circle to the circumference.
Diameter; straight line passing through the center of a circle and meeting the circumference or surface at each end.
Area of a circle; A= ii R^
Area of a square; A= LW
II ( pi ) ; The 16Th letter of the greek alphabet used as the symbol
for the ratio of the circumference of a circle to its diameter.
The largest possible circle is to be cut
from a 10-foot square board. What will
be the approximate area, in square feet,
of the remaining board (shaded region)?
( . A r = ≈ π π 2 and 3 14)