Posted by **Mr. J** on Thursday, May 6, 2010 at 8:12am.

Hello ma’am sir.. I have a problem in my assignment.. I‘m now a college student…a first year student…this is my question..please help me.. I really need it now… 1. The diameter of the earth is 7920 miles, and that of the moon is 2160 miles. Compare their volumes.

2. A pyramid V-ABCD is cut from a cube of edge 12 inch. The vertex V is the midpoint of an upper edge of the cube. Compute the lateral surface of the pyramid.

In my book.. There’s an answer given..but there’s no solution..

The answer of number one is>>> V of earth=(198)cube over the V of moon=(54)cube…

And for the number two is>>> 334.82 sq.in.

- Math -
**PsyDAG**, Thursday, May 6, 2010 at 10:53am
V = 4/3πr^3

Have you compared the two volumes?

I'm not sure what the second question is asking.

I hope this helps a little.

- Math -
**Damon**, Thursday, May 6, 2010 at 5:29pm
volume is proportional to length dimension cubed for similar shapes.

V2/V1 = (D2/D1)^3

- Math -
**SEBIAL,CRISTINA**, Sunday, February 8, 2015 at 9:35am
hahahahahaha

## Answer this Question

## Related Questions

- Sorry- Chemistry / Ionic Bonding - Hello My exams are coming I'm a straight A ...
- Math - I need help with the second question: A student is taking a multiple ...
- college algebra - The diameter of the Earth is approximately 7,920 miles. Given ...
- English - Write a sentence that matches the form provided in the description (...
- math - a school is divided into 4 houses,P,Q,R and S.On sports day,the students ...
- English - You told me they were inappropriate because there could be many ...
- physics B - This is the first question on the 2003 ap physics b exam. I need ...
- MATH - A SCHOOL IS DIVIDED INTO 4 HOUSES P,Q,R,S. ON SPORTS DAY,STUDENTS LINE UP...
- physics - The 80kg student balances a 1300kg elephant on a hydraulic lift. (U-...
- Math - A student is taking a multiple choice exam. There are five possible ...