just the number 2 maths problems thanks

Mathematics
Tutor: None Selected Time limit: 1 Day

Jan 25th, 2015

2) (a)Radius of small circle=diameter/2=4/2=2 cm

(b) Area of larger area=pi *8*8=3.142*8*8=201.062 cm^2

area of one smaller circle=3.142*2*2=12.566 cm^2

area of both small circles=12.56*2=25.133 cm^2

Shaded area=201.062-25.133=175.9 cm^2

please best my answer

Jan 25th, 2015

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