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Mathematics 8 Online
OpenStudy (narissa):

help

OpenStudy (narissa):

OpenStudy (narissa):

@ashley_king

OpenStudy (domebotnos):

what do you think it is?

OpenStudy (calculusxy):

The perimeter of a circle, is also known as the circumference. \[C = 2 \times \pi \times r\]

OpenStudy (calculusxy):

Calculate the perimeter of the whole circle, with the given radius, and then divide that outcome by four because that fragment looks like it is 1/4 of a circle. |dw:1430672679471:dw|

OpenStudy (calculusxy):

\[(2 \times \pi \times 3) \div 4\]

OpenStudy (narissa):

its 4.71 thanks all of u

OpenStudy (calculusxy):

Correct ! Great job! :)

OpenStudy (mathstudent55):

The perimeter is the distance all around a figure. In a polygon, it is the sum of the lengths of all sides. In this case, it is the sum of the distance around the round part added to the two radii. You need to find a quarter of the circumference of a circle of radius 3 cm, then add 3 cm and another 3 cm.

OpenStudy (mathstudent55):

|dw:1430672853791:dw|

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