Acircle has a radius of 9 cm and a sector of the circle has an arc length of 9.7 cm. the angle at the centre of the sector is x°.calculate the value of x to the nearest degree.

  Value of x = 62

Explanation:

 Angle in radian = Arc length/ Radius

Arc length = 9.7 cm

  Radius = 9 cm

   Angle in radian = Arc length/ Radius = 9.7/9 = 1.078 radians

  2π radians = 360°

  1 radian = 57.296°

  1.078 radians = 1.078 x 57.296 = 61.75° = 62°

  Value of x = 62                        

area = length x width

length = 2 x width

32 = 2 x width x width

32 = 2 x width^2

36 = width ^2  

width = 6

length = 12

area is 32

perimeter = 2 x 12 + 2 x 6 = 24 + 12 = 36

step-by-step explanation:

the correct answer is x/3+10≥32

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