document.write( "Question 17470: What is the area of a square patio that measures 9.5 m on each side? \n" ); document.write( "

Algebra.Com's Answer #8417 by askmemath(368) $\"\"$ $\"About$

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Area of a square is SidexSide = Side^2
\n" ); document.write( "So we now have to find (9.5)^2
\n" ); document.write( "Here's a little trick for Squaring numbers ending in 5.
\n" ); document.write( "For the last 2 digits write down the square of 5 i.e. 25
\n" ); document.write( "Whatever the digit before 5( in this case 9) multiply that with the next highest number i.e. 10
\n" ); document.write( "So we get 9x10 = 90
\n" ); document.write( "Write this before 25 = 9025.
\n" ); document.write( "But we started with 9.5 i.e. 1 decimal place and we multiplied with a number containing 1 decimal place.Which means we have to count for 2 decimal places
\n" ); document.write( "So we get 90.25 sq metres \n" ); document.write( "

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