GCSE Maths Higher Revision Formulas

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DIAMETER RADIUS RADIUS ISOCELES A- CIRCLE THEOREMS H HGG A Opposite angies in a cucric quad- rilateral add up to 180 Length of two Chord bisector = to a diameter fangents 110 Eb Y A a+b=a point ar equal angies in same segment TANGENT are equal GEOMETRY Aa+b+c=180² a+b+c=180° atb to td atbre OR CHORD b=b NNU 151 LaFa SOH CAH TOA H A SIN= OPP HYP COS = ADJ HYP tan= OPP ADJ M a+b = 180° ANGLED TRIANGLES ONLY RIGHT- SINE COSINE any other A C to O ol SINE RULE: Ć Slin C FORMULAS CUMULATIVE FREQ GRAPHS MEDIAN find halfway up then read off bottom axis. QUARTILES = 1/4 and 3/4 wasy then read off up. bottom axis INTERQUATILE RANGE = distance between 1/4 and 3/4 quatiles on bottom scale SIDA Sin B COSINE RULE a²=b² +0²-2bc x COSA COSA= b²+ c²-a² 2bc PIE CHARTS -add total of items -find multiplier to get to 360 - multiply every number by 4 to get angle PROBABILITY ● QUADRATIC FORMULA X = - b ± √b² - 4ac 20 ↳ for ax² +0x + c Area of a 4 1/₂ absint P(A and B) = P(A) x P(B) P(A or B) =P (A) + P(B) P (AT LEAST) = ner) 。 1-p (the other outcome Circle = r² Sector = Ⓒ 360 POLYGONS ext. anglès = 360° 0 Sum of ext angle = 360° X Range = how far from smallest to biggest BEARINGS from northline clockwise N Q Sun of int angle = (n-2) x180° DATA - mode = mos+ common • median = middle AREAS Rectangle = L x W Triangle = 1/2xbxh parallelogram = bxh Trapezium = 1½/2 (a+b)xh area of Cricke VOLUME Ced cuboid = LXWXH 5G isosceles a=d prism: area of XH Cross section P Flom P to PYTHAGORAS L a h²=a² + b² base pyramid=1/3x area th cone = 1/3 7₁²xh Sphere: 4/3 Ar³ SHIFTS STRETCHES ON GRAPHS 6 y = Kf(x) > Squeeze 21 Squash · y = poc to moves a along + y...

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