3 Akash needs to put plastic trim on a shaped window. The window is made using a rectangle and a semi-circle.
The diagram shows the places where he needs to put the plastic trim.
59 cm
DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA
Key
plastic trim
172 cm
113 cm
118 cm
Akash estimates that he will need 700 cm of plastic trim in total.
DO NOT WE
THIS AREA
Use estimation to check if Akash's estimate is sensible.
You must show your working.