GCSE maths revision questions

[Paul Wilson]

I'm doing some Maths revision for my impending GCSE tests later this year. I have a (few) question(s) that I need explained to me in very simple easy methods.

Beware - there will probably be more questions.

Thanks peeps. Here's the first question I need help with.

http://img152.echo.cx/img152/1414/sananscan0016gq.jpg

Click for question scan.

 

[whozum]

Yucky, get a new scanner.

How do you find the perimeter of a shape?

 

[Paul Wilson]

Multiply all the sides together.

example:

Side 1 * side 2 * side 3 = perimeter.

 

[mathwonk]

no, add the sides together, here it is 6x+8.

 

[Paul Wilson]

no, add the sides together, here it is 6x+8.

Would you mind showing me how you done that, please?

 

[whozum]

If you walk around a park in the shape of a triangle, how far doy ou walk if the sides are 20m, 30m, and 40m? You walk 20m to get from one corner to the next, then from that corner to the second corner you walk 30m, and then from the second to your starting pointyou walk 40m. The distance you walked is _____ ?