Surds

This is a revision card on surds that might appear on the maths exam.

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  • Created by: kira
  • Created on: 01-05-11 16:56

surds

(example taken from Mymaths.co.uk) (/=square root)(sq=squared)

-There is a right-angled triangle with a base of 5m and height of 8m. We need to know the perimeter. Using pythagoras:

8 + 5+/8sq+/5sq  =   13/89

-Work out /4 x /9  =    6  =  /36

/a x /b = /axb = /ab

-Work out /100 divided by /25 = 2 = /4

-2/3 x 5/2 = 2 x 5 x /3 x /2 =10 x /3x2 = 10/6              

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