The area of a rhombus can be evaluated using the formula , where d1 represents the measure of one of its diagonals and d2 represents the measure of its other diagonal. When d1 is a terminating decimal and d2 is a repeating decimal, what can be concluded about the area of the rhombus? The area is irrational because both diagonals are irrational. The area is rational because the product of an irrational diagonal and rational diagonal will be multiplied by the rational fraction . The area is rational because the formula will multiply both rational diagonals and the fraction . The area is irrational because the formula will multiply two decimals by a fraction.