# If sides A and B of a triangle have lengths of 1 and 6 respectively, and the angle between them is (pi)/2, then what is the area of the triangle?

The area of a triangle is half the product of any two sides times the sine of the angle between them. The angle between the two given sides is $\setminus \frac{\pi}{2}$ radians which is a right angle, so its sine is 1. Therefore: