Problem: if the sides of a triangle are 196 cm , 81 cm and 277 cm , what is its area ?
Rationale: "the triangle with sides 196 cm , 81 cm and 277 cm is right angled , where the hypotenuse is 277 cm . area of the triangle = 1 / 2 * 81 * 196 = 7938 cm 2 answer : option e"
annotated_formula: divide(multiply(81, 277), const_2)