What is the product of two numbers when the sum of the numbers is 12 and the difference between them is 4?
+
What is the sine ratio of angle A if the opposite side is 10 cm and the hypotenuse is 15 cm?
+
Math question: In triangle ABC, angle A is bisected by segment BD. If angle A measures 80 degrees, angle B measures 60 degrees, and angle C measures 40 degrees, what is the measure of angle BAD?