A 10 meter ladder is inclined against a wall at an angle of elevation of 20°. If the top of the ladder reaches the top of the wall, how tall is the wall?
The ladder's length forms the hypotenuse of a right triangle.....and we're trying to find the opposite side.......the function that relates these is the sine.....so we have
The ladder's length forms the hypotenuse of a right triangle.....and we're trying to find the opposite side.......the function that relates these is the sine.....so we have
