Netflix S Satchel One I Learni...
Work out the perimeter of this
sector. Give your answer to 2
decimal places.
126°
9cm

The perimeter is 37.8 cm

Step-by-step explanation:

The perimeter of a sector is the sum of the length of the arc and 2 radii

The formula for the length of the arc is;

theta/360 * 2 * pi * r

126/360 * 2 * 3.142 * 9 = 19.80 cm

We now add the 2 radii

That gives;

19.80 + 2(9)

19.80 + 18

= 37.8 cm

definition: a circle is the  set of all points in a plane that are equidistant  from a given  point  called the center of the circle. we use the symbol ⊙ to represent a circle. the a line segment from the center of the circle to  any point  on the circle is a radius of the circle.

step-by-step explanation:

i googled it and this is what i got i don't know how it is. sorry.

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step-by-step explanation: