Question

beth set up a blanket tent at the edge of the table. what is the measure of the angle, in degrees, between the floor and the blanket?

Answer 1

Since the triangle formed is right triangle, the angle between the floor and the table is 90 degrees. The sum of the angles of a triangle is 180 degrees. We already have the measure of the two angles. Therefore, the measure of the third angle is:
180 - 90 - 12 = 78 degrees