Here is a video.

I won't rave about it - it is not the way I would usually explain it - but you might find it good.

I think CPhill has assumed that the base is an equilateral triangle of side length 18 units.

This is not actually stated in the question but i guess it is a reasonable assumption.

All the angels are 60 degrees

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in triangle ABC 

 $${\mathtt{Area}} = {\frac{{\mathtt{1}}}{{\mathtt{2}}}}{\mathtt{\,\times\,}}{\mathtt{a}}{\mathtt{\,\times\,}}{\mathtt{b}}{\mathtt{\,\times\,}}{\mathtt{sinC}}$$

$${\mathtt{Area}} = {\frac{{\mathtt{1}}}{{\mathtt{2}}}}{\mathtt{\,\times\,}}{\mathtt{18}}{\mathtt{\,\times\,}}{\mathtt{18}}{\mathtt{\,\times\,}}{\mathtt{sin60}}$$

$${\mathtt{Area}} = {\frac{{\mathtt{162}}{\mathtt{\,\times\,}}{\sqrt{{\mathtt{3}}}}}{{\mathtt{2}}}}$$

$${\mathtt{Area}} = {\mathtt{81}}{\mathtt{\,\times\,}}{\sqrt{{\mathtt{3}}}}$$

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$${\mathtt{Volume}} = {\frac{{\mathtt{1}}}{{\mathtt{3}}}}{\mathtt{\,\times\,}}{\mathtt{Area}}{\mathtt{\,\times\,}}{\mathtt{height}}$$

$${\mathtt{Volume}} = {\frac{{\mathtt{1}}}{{\mathtt{3}}}}{\mathtt{\,\times\,}}{\mathtt{81}}{\mathtt{\,\times\,}}{\sqrt{{\mathtt{3}}}}{\mathtt{\,\times\,}}{\mathtt{4}}$$

$${\mathtt{Volume}} = {\mathtt{108}}{\mathtt{\,\times\,}}{\sqrt{{\mathtt{3}}}}$$    units cubed.   

$$Volume \approx 187unit^3$$

Only the x is raised to the negative power not the 2

remember PEDMAS

There is an invisable x sign between the 2 and the x 

and, you must do exponents (powers) before you do multiply.  so only the x is raised to the power of -2

That is a very good answer 

There is a fraction calculator buit in.  It is in a drop down box on the top right of the main calculator.

If you don't understand or you would like more ways to do it look here.

If it is cold it will be a minus (or negative temperature).  Like if you are in a freezer!

So sometimes it helps if you think of negative numbes as being cold numbers and positive numbers as being hot numbers.

If you are already in the freezer (so it is a negative temperature) and you make it even colder (take away more heat ) then the temp will get even more negative

-5-6 (-5 take away 6 degrees of  heat = -11 degrees)

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WE REALLY NEED TO USE NUMBER LINES FOR THESE QUESTIONS!

Yes,  

Yes,  

Yes,  

Yes, 

Yes, 

Maths is FUN!!!!!

You are both wrong.

It is 10 mules/hour but that is not a speed.  I don't think that a mule is a distance.  

So we are not given enough information to answer this question!

52squared35 does not mean anything to me.

Answerers please note - I have included this thread address in the sticky page 

"information pages worth keeping or developing"

If you want answers from often repeated questions you should look in there.

Melody.