A 3 inch radius circle is drawn inside a 7 inch radius circle. If you throw a dart at these circles, what is the probability you... A. Land inside the smaller circle? B. Land inside the big circle but outside the smaller circle?

explanation:

remove parenthesis:

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apply rule

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multiply fractions:

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divide:

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mordancy.

answer: 4  

the square root of 16 is 4. it is a very simple mathematic concept. a square root when a number multiplied by itself will result in a number. here, the number 16 comes when 4 is multiplied by 4. hence the square root of 16 is 4. you can always figure out a square root by the inverse operation of squaring.