Question

Question 11 only an equilateral triangle ha each 2m

Answer 1

it was not my age question

Answer 2

Let the triangle be ABC

The circle touches at point P,Q,and R respectively .

A(BPR)=60/360*3.14*1^2

=0.52sq.cm

A(ABC)=√3/4*a^2

=1.73cm .sq

therefore there are 3sector

3*0.52=1.52

therefore , 1.73-1.56

=0.17