SURFACE AREA=

4 X 3.14(R^2)

4 X 3.14(15^2)

4 X 3.14(225)=

**My answer is 2826**

d= 30 m

SURFACE AREA=

4 X 3.14(R^2)

4 X 3.14(15^2)

4 X 3.14(225)=

**My answer is 2826**

SURFACE AREA=

4 X 3.14(R^2)

4 X 3.14(15^2)

4 X 3.14(225)=

- stapel_eliz
**Posts:**1628**Joined:**Mon Dec 08, 2008 4:22 pm-
**Contact:**

4 (pi/3.14) r^2

- stapel_eliz
**Posts:**1628**Joined:**Mon Dec 08, 2008 4:22 pm-
**Contact:**

That's the right formula. I don't know if you're supposed to round (using "3.14" instead of ), or if you're supposed to round so heavily. If "d" stands for "diameter", then your steps (other than the heavy rounding and truncation) look okay.

Note: Since "d" had units on it, then you'll need units on the answer.

Note: Since "d" had units on it, then you'll need units on the answer.