fan+medal. Match each shape with its perimeter or circumference. Use three point one four for pi and round to the nearest whole number where necessary.
7cm,3cm,4cm A)31cm
5cm B)34cm
12cm,5cm C)22cm
4cm D)24cm
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OpenStudy (anonymous):
@hartnn
OpenStudy (anonymous):
@ganeshie8
OpenStudy (anonymous):
@undeadknight26
OpenStudy (anonymous):
@miraclemilktea2
OpenStudy (anonymous):
@SolomonZelman
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OpenStudy (anonymous):
@miraclemilktea2
OpenStudy (anonymous):
@texaschic101
OpenStudy (anonymous):
@ash2326
OpenStudy (anonymous):
There has to be more to this question...
OpenStudy (anonymous):
u have to match the shapes
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OpenStudy (anonymous):
There are no shapes lol.
OpenStudy (anonymous):
ill past them
OpenStudy (anonymous):
OpenStudy (anonymous):
OpenStudy (anonymous):
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OpenStudy (anonymous):
OpenStudy (anonymous):
Hint: The 4cm and 5cm are the circular pictures.
OpenStudy (anonymous):
?
OpenStudy (texaschic101):
first shape is a parallelogram.
perimeter of parallelogram is : P = 2(a + b)
so, P = 2(7 + 4)
P = 2(11)
P = 22
7 cm, 3 cm, 4 cm : 22 cm (C)
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circumference of a circle
C = 2 (pi) * r
C = 2(3.14)(5)
C = 2(15.7)
C = 31.4...rounds to 31 cm
5 cm : 31 cm (A)
================
perimeter of rectangle
P = 2(l + w)
P = 2(12 + 5)
P = 2(17)
P = 34
12 cm, 5 cm : 34 cm (B)
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perimeter of po;ygon
P = number of sides * length of a side
P = 6(a)
P = 6(4)
P = 24
4 cm : 24 cm (D)
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any questions ?