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1. (Original post by Jack Twist)
Maths Question

Right I have a 3 sided triangle. I need to work of the value of a

On the left hand side there is 65o in a bubble inside the triangle, on the right handside there is a circle outside the triangle saying 138o. and at the top of the triangle is the a.

I know that triangles add up to 180, but whats the value of A? would it be: 138-65=73

a=97.

if you get me?
no a is not equal to 97 hon
2. (Original post by ~NC~)
Im not quite sure im getting what your asking, can you perhaps draw a pic in paint and send via msn?

yup, just give me about half n hour
3. EDIT: confuzzled myself

hey everyone
4. (Original post by lil_groovy_dude)
Just ignore me if I get it wrong but I think you would need to do;

180-138=42o

then you've got 2 values of the triangle 42o and 65o

65 + 42 = 107

therefore you would need to do 180-107 = 73o

a=73o

But I'm not too sure!
Thats what i thought aswell, but im not sure, if he send a diagram ill be able to help
5. (Original post by ~NC~)
Im not quite sure im getting what your asking, can you perhaps draw a pic in paint and send via msn?
I think he's saying that the 65o is given as an interior angle and 138o as an exterior angle and you've got to work out the interior angle and then work out the last value (a)
6. am I right or am I wrong?
7. (Original post by Jack Twist)
yup, just give me about half n hour
Lol just a rough sketch Even though if a is an angle i am sure it is 73 degrees
8. (Original post by lil_groovy_dude)
Just ignore me if I get it wrong but I think you would need to do;

180-138=42o

then you've got 2 values of the triangle 42o and 65o

65 + 42 = 107

therefore you would need to do 180-107 = 73o

a=73o

But I'm not too sure!
are you sure he isn't looking for the lenght of the side of the triangle that is a?

do you guys do sine rule at gsces?
hayley isn't it the sine rule or am i too messed up with maths to know this is straightforward stuff?? maths was never meant to be hard
9. (Original post by lil_groovy_dude)
I think he's saying that the 65o is given as an interior angle and 138o as an exterior angle and you've got to work out the interior angle and then work out the last value (a)
Yer thats what i was thinking aswell, but i need to see a diagram to be sure xD
10. (Original post by lil_groovy_dude)
am I right or am I wrong?

I dunno
11. (Original post by January Victim)
are you sure he isn't looking for the lenght of the side of the triangle that is a?

do you guys do sine rule at gsces?
hayley isn't it the sine rule or am i too messed up with maths to know this is straightforward stuff?? maths was never meant to be hard
Im not sure, if its an angle its just basic adding/subtracting. If its a side then it will be the sine/cosine rule But im sure thats not GCSE standard, and if it is its higher....
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