Question

5) b) (a) (b) Lets and t stand for: S: sally is smart. tom is tall. Rewrite these symbolic statements into readable statements. a) A circle has a radius of 12cm and a chord 26cm long. Calculate the shortest distance from centre of the circle to the chord. (b) (1) (ii) (1) -S sat (t vs) → t The sum of the interior angle of a regular n-sided polygon is 1260. Calculate the () value of n (11) size of an exterior angle of the polygon. Construct the quadratic equation whose roots are 2/3 and 5. Given that tang √3 find sin³0 - cost. ABCD is a trapezium with AB parallel to DC and /AD/=/AB/ if ​

Answer 1

The equation of circle provides an algebraic way to describe a circle, given the center and the length of the radius of a circle. The equation of a circle is different from the formulas that are used to calculate the area or the circumference of a circle. This equation is used across many problems of circles in coordinate geometry.
To represent a circle on the Cartesian plane, we require the equation of the circle. A circle can be drawn on a piece of paper if we know its center and the length of its radius. Similarly, on a Cartesian plane, we can draw a circle if we know the coordinates of the center and its radius