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Maths Coursework HELP!
Hi all, I am currently doing the peice of maths coursework which has me finding out the maximum area possible within shapes with a 1000cm perimeter (all sides have to add up to 1000cm) I aint really good at maths but I been doing ok. I am on triangles! go me eh! Anyways, how do I find out the area of a scalene triangle, I tried herons formula, hang on I will show u wht I have done....
I did S=1/2 (700+200+100) which was 500 same as isoceles!
then
area=500(500-200)(700-500)(500-100)
I had to swap around the 700 and 500 didn't I?
Then i square rooted wht I got for tht but it seemed wrong, any help guys? wht values should I use?
I did S=1/2 (700+200+100) which was 500 same as isoceles!
then
area=500(500-200)(700-500)(500-100)
I had to swap around the 700 and 500 didn't I?
Then i square rooted wht I got for tht but it seemed wrong, any help guys? wht values should I use?
The area of any triangle is (height*base)/2...all you have to do for non-90degree triangles is decide which side to use as the base and then work out the height - either using trig or just measuring scale drawings.
wavey-davey
Hi all, I am currently doing the peice of maths coursework which has me finding out the maximum area possible within shapes with a 1000cm perimeter (all sides have to add up to 1000cm) I aint really good at maths but I been doing ok. I am on triangles! go me eh! Anyways, how do I find out the area of a scalene triangle, I tried herons formula, hang on I will show u wht I have done....
I did S=1/2 (700+200+100) which was 500 same as isoceles!
then
area=500(500-200)(700-500)(500-100)
I had to swap around the 700 and 500 didn't I?
Then i square rooted wht I got for tht but it seemed wrong, any help guys? wht values should I use?
I did S=1/2 (700+200+100) which was 500 same as isoceles!
then
area=500(500-200)(700-500)(500-100)
I had to swap around the 700 and 500 didn't I?
Then i square rooted wht I got for tht but it seemed wrong, any help guys? wht values should I use?
did the a button stop working on your keyboard?
I looked at tht but didn't find it helpful! hmmm, I dunno wht to do >.<
If you want to double check then draw a scale version of your triangle and use right angled triangles drawn onto it to calculate a height and a base and see if the 2 results tally.
And include your double checking in your coursework...spotting odd looking results and double checking will gain you extra marks...even if the answer works out right.
And include your double checking in your coursework...spotting odd looking results and double checking will gain you extra marks...even if the answer works out right.
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