Questions
Each card opens its question.
Making tin cans
How many square metres does Sara need to produce each can?; How many € will it cost to make each can? (If you could not find the previous area, you may use this data: each can has an area of $175\ \text{cm}^2$.); Will she be able to buy…
The streets of Sadernes
What is the length of David Bowie street and Carmina Virgili street?; How many paving stones do they need to pave both pavements of Lise Meitner street if each stone is $0.5$ metres long?
Aspect ratio: $1.\overline{7}$ and $\tfrac{16}{9}$
Paula's neighbour told her that her television screen has an aspect ratio of $1.\overline{7}$ and that it is the same as Paula's. At the shop they told Paula hers had an aspect ratio of $\dfrac{16}{9}$ and she does not understand how the…
Conical grain silo
On a farm they have installed a conical grain silo. We know the silo is $6$ metres high and has a capacity of $300\ \text{m}^3$. What area does its base cover? What is its radius?