A New Trigonometry for Schools

Answer approx base Calculate called centimetres centre CHAPTER circle circular column containing correct cos A cos cosec cosine diameter difference digits direction distance Draw drawn earth equal EXAMPLES Express feet figure Find the height Find the value foot formulae given horizontal inches increases inscribed left-hand length lies logarithms measure Method metres miles minutes move multiple nearest negative object observed obtain opposite perpendicular places of decimals plane positive projection Prove quantity radians radius ratios regular respectively result right angle rule scale sides sine sinº solution Solve the equation square straight subtends an angle tables tangent tanº tower triangle triangle ABC unit vertical walking