Skip to content / Đến nội dung
ThichHocToan.com

Australian AMC 2012 - Junior Question 8

AMC AUSTRALIA · Australian AMC 2012 - Junior

Question 8

The adjacent sides of the decagon shown meet at right angles and all dimensions are in metres.

Question illustration

What is the perimeter, in metres, of this decagon?
  1. 45
  2. 60
  3. 34
  4. 90
  5. cannot be calculated