Make a drawing with a right triangle.
The opposite side, y, is the height of the dam less 1.65 m
The base or adjacent side is 90 m
The angle between the two sides is 90 m.
Then tan (26) = y / 90
y = 90 tan(26) = 90 (0.4877) = 43.90 m
The height of the dam is 43.90m + 1.65m = 45.55 m
The answer is the second choice. Hope that was helpful
Sequence 1 is arithmetic because it is being subtracted by 16.
Sequence 2 is geometric because it is being divided by 2.
Arithmetic is when you're adding or subtracted and geometric is when you multiplying or dividing.
