The diagonal of one face of a cube measures 42 inches . what is the volume of the cube?
Created: 9 months ago | Updated: 4 months ago
Job Solution Oil & Gas Co. Ltd Titas Gas Co.Ltd - Deputy Asst. Engineer - 18.02.2011 গণিত
249
Add Description
Best Description

Let's call the length of each side of the cube 's'. 

Then the diagonal of one face is 4√2 inches. We can use the Pythagorean theorem to find the length of 's':

s2 + s2 = (4√2)2 

⇒ 2s2 = 32 

⇒ s2 = 16 

∴ s = 4 inches

So the volume of the cube is:

V = s3 

⇒ V = 43 

∴ V = 64 cubic inches.

1 year ago
0 0
লেডার

Related Questions

A company owns some land and buildings for which the following details are relevant : Cost of land Taka 50,000; cost of building Taka 100,000, estimated life of building 20 years, estimated residual value of building Taka 2000; estimated residual value of land Taka 50,000. The company uses the straight line depreciation method. Which is the correct annual depreciation charge for this asset?

Created: 9 months ago | Updated: 4 months ago
Job Solution Oil & Gas Co. Ltd Sylhet Gas Field Co - Asst. Manager -14.06.2013 গণিত
1981
Add Description

A can do a piece of work in 10 days. While B alone can do it in 15 days. They work together for 5 days and the rest of the work is done by C in 2 days. If they get Tk 450 for the whole work, how much money C should get from the whole?

Created: 9 months ago | Updated: 4 months ago
Job Solution Oil & Gas Co. Ltd Sylhet Gas Field Co - Asst. Manager -14.06.2013 গণিত
3052
Add Description

By walking at 3/4 of his usual speed, a man reaches his office 20 minutes later than usual. His usual time is :

Created: 9 months ago | Updated: 4 months ago
Job Solution Oil & Gas Co. Ltd Sylhet Gas Field Co - Asst. Manager -14.06.2013 গণিত
2092
Add Description

২.৫ মিটার বর্গাকার একটি খোলা চৌবাচ্চায় ২৮,৯০০ লিটার পানি ধরে। এর ভিতরে এলুমিনিয়ামের পাত লাগাতে প্রতি বর্গমিটারে ৫ টাকা হিসাবে মোট কত খরচ পড়বে?

Created: 9 months ago | Updated: 4 months ago
Job Solution Oil & Gas Co. Ltd Bangladesh Gas Field Co - Asst. Manager - 08.04.2011 গণিত
5053
Add Description

একটি মইয়ের এক প্রান্ত ভূমি থেকে ১৫ মিটার উঁচু ঘরের জানালা বরাবর পৌছায়। অপর প্রান্ত ঘর থেকে ৮ মিটার দূরে থাকলে মইয়ের দৈর্ঘ্য কত মিটার?

Created: 9 months ago | Updated: 4 months ago
Job Solution Oil & Gas Co. Ltd Bangladesh Gas Field Co - Asst. Manager - 08.04.2011 গণিত
1853
Add Description