izzahaz42
izzahaz42 izzahaz42
  • 28-03-2019
  • Mathematics
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please help me with question no.1 and 2. chapter ; circles​

please help me with question no1 and 2 chapter circles class=

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meh278 meh278
  • 28-03-2019
1. Find the perimeter of the square then the circumference of the circle then subtract the circle from the square.
Area of square=length of side squared=9.8^2=96.04.
Area of circle=(pi*radius)^2=((22/7)*(9.8/2))^2

2. Area of circle=pi*r squared
38.5=((22/7)*r)^2
Solve for r
Square root of 38.5/(22/7))=r
calculate area using above formula
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