a) A circle has radius 4.6 cm
Work out the length of the circumference.
Give your answer to 1 decimal place.
(3)
+
I
b) A circle is shown with centre O.
(1)
The shaded area is a
of the circle.
O

Respuesta :

Answer:

So we know the formula is 2 x pie x r, and now we have a radius of 4.6. 4.6 x 2 = 9.2        9.2 x 2 = 18.4

Step-by-step explanation: