No, mensuration is not just about shapes and their areas. Mensuration is a branch of mathematics that deals with the measurement of geometric objects such as length, area, volume, and angles.
In the context of shapes and their areas, mensuration involves calculating the area and perimeter of two-dimensional shapes such as squares, rectangles, triangles, and circles. It also involves calculating the volume and surface area of three-dimensional shapes such as cubes, cylinders, spheres, and cones.
However, mensuration also includes other concepts such as trigonometry, which involves calculating angles and side lengths of triangles, and calculus, which involves calculating the rate of change of various geometric quantities.
In general, mensuration is an important topic in mathematics and has many practical applications in fields such as engineering, physics, and architecture.