Nikita calculated the volume of the right triangular prism. Her work is shown below.

A triangular prism. The triangular base has a base of 8 centimeters and a height of 13 centimeters. The height of the prism is 7 centimeters.

Nikita’s Work:

Area of base = B = one-half b h = one-half (7) (8) = 28 centimeters squared.

Volume = B h = (28) (13) = 364 centimeters cubed.

Where, if any, did Nikita first make a mistake in her work?
Nikita used the wrong formula for the area of the base.
Nikita used the wrong measurements when finding the area of the base.
Nikita used the wrong formula for the volume of the prism.
Nikita did not make a mistake.