selmaahmed2014 selmaahmed2014
  • 19-09-2018
  • Mathematics
contestada

A semicircular flower bed has a diameter of 3 metres.
What is the area of the flower bed?
m2

Respuesta :

lisboa lisboa
  • 19-09-2018

A semicircular flower bed has a diameter of 3 meters.

Diameter = 3 meters

Radius = [tex]\frac{diameter}{2}=\frac{3}{2} [/tex]

Area of circle = [tex]\pi r^2[/tex]

Area of semi circle = [tex]\frac{1}{2}\pir^2[/tex]

where r is the radius of the circle

Area of semi circle = [tex]\frac{1}{2} * \pi *\frac{3}{2}^2[/tex]

We use 3.14 for pi

Area of semi circle = [tex]\frac{1}{2} * 3.14 *\frac{3}{2}^2[/tex] = 3.5325

Area of semi circle = 3.53 [tex]m^2[/tex]



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