Cannot perform calculation. Your 3 side lengths () are invalid. Side Lengths of a do not adhere to the triangle inequality theorem. Which states that the sum of the side lengths of any 2 sides of a triangle must exceed the length of the third side.
File photo / NZ Herald. The cost of postage is set to rise in July, New Zealand Post says. The standard letter rate, which is the cost of sending a medium-sized letter by standard post in New Zealand, is set to increase from 70 cents to 80 cents.Sending larger letters would also cost more, increasing from $1.40 to $1.60.epending on the size of the parcel and whether it was self-wrapped or in a New Zealand Post postage bag, people would be paying between 10 cents and $1 more. Meanwhile, premium letter services, which is Fast Post and Box Link, would not change in cost, New Zealand Post said.
Answers. Best Answer: She is wrong! Currant postage for a letter to Canada is $.80 up to 1 ounce and $.20 for each additional ounce. Postcard to Canada is also $.80 You should go back and tell her to look it up on the USPS web page for calculating postage.http://postcalc.usps.gov/.ow much does it cost to mail a letter from the USA to Canada? I bought stamps yesterday to mail letters from the US to Canada and the lady at the post office insisted it was .98 cents.