From the table, it can be observed that the angle sum of a convex polygon of n sides is (n —2) x \\(180^{\\circ}\\). Hence, the angle sum of the convex polygons having number of sides as above will be as follows.
(a) (7 - 2) x \\(180^{\\circ}\\) = \\(900^{\\circ}\\)
(b) (8 - 2) x \\(180^{\\circ}\\) = \\(1800^{\\circ}\\)
(c) (10 - 2) x \\(180^{\\circ}\\) = \\(180^{\\circ}\\)
(d) (n - 2) x \\(180^{\\circ}\\)