In this task, you need to answer the given multiple-choice question on geometry. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

[EX Q]: Problem: an isosceles triangle with sides 13 13 10 and there is a circle inscribed it . find the radius of circle ? 
Options: ['a ) 1.32', 'b ) 3.33', 'c ) 3.58', 'd ) 4.34', 'e ) 5.18']
[EX A]: b

[EX Q]: Problem: the area of a triangle is with base 10 m and height 10 m ? 
Options: a ) 11 , b ) 10 , c ) 50 , d ) 122 , e ) 12
[EX A]: c

[EX Q]: Problem: if the sides of a triangle are 28 cm , 24 cm and 15 cm , what is its area ? 
Options: a ) 180 cm 2 , b ) 112 cm 2 , c ) 776 cm 2 , d ) 666 cm 2 , e ) 886 cm 2
[EX A]:
a