Question

34. The diagram shows a sector of a circle of radius 10 cm.

Answer 1

Answer:

rc  length  =  10 * 8pi/5

 =   16pi

This is the circumference of the base

(a)   2pir     =   16pi  where  r  =  radius of base

  2r     =    16

   r     =  8 cm

(b)   10^2    =   h^2   +  8^2

 h^2    =   100  -  64

  =    36

h      =    6 cm

Answer 2

Answer:

rc  length  =  10 * 8pi/5

Step-by-step explanation:

=   16pi

This is the circumference of the base

(a)   2pir     =   16pi  where  r  =  radius of base

 2r     =    16

  r     =  8 cm

(b)   10^2    =   h^2   +  8^2

h^2    =   100  -  64

 =    36

h      =    6 cm