Asked by lia

a piece of string 25 cm long goes exactly once round the edge of a plate in the form of a quadrant pie = 3.14
Find the radius of this quadrant and calculate the area of the quadrant

Answers

Answered by Steve
s = rθ
You have s and θ (hint: a full circle is 2π), so find r.

a = 1/2 r^2 θ
then let 'er rip

and that's <b>pi</b>, not pie!
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