Mathematics Knowledge Answer

In my role as ASVAB tutor, I remind my students of the importance of studying geometry and algebra for the Mathematics Knowledge section of the ASVAB.

 Yesterday I presented a Mathematics Knowledge question.

This is a geometry question on the topic of perimeter.

I remind my students of the importance of knowing how many sides all the shapes have including: quadrilateral, pentagon, hexagon, heptagon, septagon, octagon, nonagon, decagon, undecagon, hendecagon, and dodecagon.

The question is:

What is the perimeter of a hendecagon with each side equal to 7?

  1. 42
  2. 70
  3. 77
  4. 84

To be able to figure out the perimeter of a hendecagon, you need to know how to find perimeter of a shape and you need to know how many sides a hendecagon has.  To find the perimeter of a shape, add up all the sides. A hendecagon has 11 sides.

Each side is equal to 7.  There are 11 sides.  To find the perimeter of this shape, you can multiply 11 by 7.

11 x 7 = 77.

The perimeter is 77

The answer is Choice C. 77.