Assertion (A): The side of an equilateral triangle is 6 cm then the area of the triangle is 9 cm².
Reason (R): All the sides of an equilateral triangle are equal,
a) Both A and R are true and R is the correct explanation of A.
b) Both A and R are true but R is not the correct explanation of A.
c) A is true but R is false
d) A is false but R is true.