Qualification > Math
IGCSE MATHS Doubts
Ghost Of Highbury:
ii) x = 40 degree (alternate angles)
y = 25 degree (OAB is isosceles therefore 180-130 = 50. 50/2 = 25)
z = 180-25 -40 = 180-65 = 115 degree.
iii) OCT = 90 degree, as OC is the radius and it forms a right angle with a tangent.
iii) 210 degree. 130+90.
haris94:
--- Quote from: sd7764 on May 04, 2010, 10:33:54 am ---whoaaaa @ haris94 comon every person in the world noes tht igcse allows calci !!
the thing there are specific rules abt which calci u use..
commin to calcis of casio...ny model abv fx-100 ms is NOT ALLOWED !!
thts wat i wantd 2 clear..!! :)
--- End quote ---
i see what u mean
well i use fx-991ms and almost every1 in my class uses above fx-100ms
it has to be allowed or we would hv been notified
calculator covers arent allowed though
Vin:
X = 40… alternate angles
Y = 25 OB n OA are radius
Z = 115… cyclic quad property..sum of angles are supplementary
OCT = 80 OC n OB radius so x = OCT
AOC = 230
Vin:
--- Quote from: sd7764 on May 04, 2010, 11:14:08 am ---X = 40… alternate angles
Y = 25 OB n OA are radius
Z = 115… cyclic quad property..sum of angles are supplementary
OCT = 80 OC n OB radius so x = OCT
AOC = 230
--- End quote ---
oh im sorry i didnt see u already slvd A@di..
:)
The Golden Girl =D:
--- Quote from: sd7764 on May 04, 2010, 10:33:54 am ---whoaaaa @ haris94 comon every person in the world noes tht igcse allows calci !!
the thing there are specific rules abt which calci u use..
commin to calcis of casio...ny model abv fx-100 ms is NOT ALLOWED !!
thts wat i wantd 2 clear..!! :)
--- End quote ---
wth?!!??!!? r u serious ?!!?!? i bought this calulator cuz my dad and my tutor who's an experienced teacher in teachin IG students told me it's allowed!?!? ....i am soo gonna die if what u're sayin is true "cuz it was really expensive :-["
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