Question
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
Find the radius of this quadrant and calculate the area of the quadrant
Answers
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!
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!