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# The area of the entire surface of a triangular prism with the base side a = 11 and height h = 40 equal to 1424.786

a: The area of the entire surface of a triangular prism with the base side a = 11 and height h = 40 equal to 1424.786

A regular triangular prism is a geometric figure whose base is an equilateral triangle.

Triangular prism surface area formula
where a is the side of the base, h is the height of the prism

Solution:

S =

6·a·h+a^{2}·√3

2

=

6·11·40+11^{2}·√3

2

=

2640+121·1.732

2

=

2640+209.572

2

=

2849.572

2

=

1424.786

a: The area of the entire surface of a triangular prism with the base side a = 11 and height h = 40 equal to 1424.786