A cube has six identical square sides. Because both the length and width of a square are equal, the area of a square is a2, where a is the length of a side. Since there are 6 identical sides of a cube, to find the surface area, simply multiply the area of one side times 6.
It is easy to get duplicate copy of the acknowledgement of the income tax return acknowledgement if the income tax return has been filed online. You just need to login on https://incometaxindiaefiling.gov.in website if already registered. In case not registered , you can register with your mobile number and email id.
Here's how you can obtain a free copy of your return: Sign into your efile.com account. Click My Account on the upper right side of your account screen. Click the appropriate Tax Year link under the Your Return heading. Your completed return will be listed as a PDF file, ready for you to download and print.