Asked by Rolz
Calculate the perimeter of the sector of a circle in centimeters. Use pie = 22/7, radius =14cm and angle =45 degrees.
Answers
Answered by
Chloe
the length of the arc of a sector is given by the radius times the angle bisected at the centre.
l = 14 x 45
= 630cm
Then you just add twice the radius (the two sides of the sector)
The perimeter = 360 + 14 + 14
= 388 cm
I don't believe you need to use pi in this question.
l = 14 x 45
= 630cm
Then you just add twice the radius (the two sides of the sector)
The perimeter = 360 + 14 + 14
= 388 cm
I don't believe you need to use pi in this question.
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