Calculate the perimeter of the sector of a circle in centimeters. Use pie = 22/7, radius =14cm and angle =45 degrees.

Answer 1

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.