Work out the circumference of the circle
(See picture)

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Suppose you are going to graph the data in the table. minutes temperature (°c) 0 -2 1 1 2 3 3 4 4 5 5 -4 6 2 7 -3 what data should be represented on each axis, and what should the axis increments be? x-axis: minutes in increments of 1; y-axis: temperature in increments of 5 x-axis: temperature in increments of 5; y-axis: minutes in increments of 1 x-axis: minutes in increments of 1; y-axis: temperature in increments of 1 x-axis: temperature in increments of 1; y-axis: minutes in increments of 5

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle