Question

A solid candy jawbreaker is cut in half. If its diameter is 4 cm, what is the surface area of a half piece? please show me the steps.

Answer 1

\[SA=4\pi r^2\]

Answer 2

Plug 2 into that in place of r. When you get the answer, divide it by 2 since we're talking about half a jawbreaker.

Answer 3

it is 16 pi. you divide with 2 it becomes8 pi.is it right

Answer 4

That's what I got.

Answer 5

but the answer is12 pi

Answer 6

We forgot to add the flat surface which is a circle with radius 2

Answer 7

please can you explain

Answer 8

The area of that circle is pi(2)^2 or 4 pi