(a)[1]
State the mathematical name for the line DE.
(b)[1]
Sketch a radius on the circle.
(c(i))[2]
Complete the statements below. Angle $ABD$ = ............ because ........................................................
(c(ii))[2]
Complete the statements below. Angle $ACB$ = ............ because ........................................................
(d(i))[3]
Calculate the area of the circle. Include the units in your answer.
(d(ii))[2]
Calculate the value of $BC$.