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EATING A COOKIE
EATING A COOKIE
Iker is going to eat a circular cookie of radius 2 cm (we will ignore the thickness).
After beating it, the shape of the cookie is the next in the right figure.
How much cookie is left for eating?
THE GOAT
THE GOAT
A goat’s chain is 3m long and it is tied to the house in the figure below. The chain can be placed along all the frontier of the house without any restriction, so that the goat can eat the maximum amount of grass.
- Draw the surface of grass that the goat will eat.
- Calculate how much grass will the goat eat.
The tyrolean
The tyrolean
I’m going to instal a tyrolean in a space how is shown in the picture below.
How long must be the length of the red cable?
The lake
The lake
The blue surface is a lake. How big ( in m2 ) is the lake?
Explain how you did and in what have you based to give the answer.
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