Question

The perimeter of the base of the prism is __ units.

Answer 1

The bases of the prism are the triangular faces.

One side is marked 3 units. The vertical sides to the left of the triangles are 4 units. In a right triangle, if the legs measure 3 and 4, the hypotenuse measures 5.

The three sides of the triangular base measure 3, 4, and 5.

Perimeter = sum of the lengths of the sides

Perimeter = 3 + 4 + 5 = 12

Answer: 12 units