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Selena and Luis are building a model bridge out of balsa wood. To make a strong bridge, they create each post by laying out two long wooden poles horizontally, as shown in the diagram, and connecting them with smaller strips of balsa wood laid diagonally in a triangle pattern. The triangle pattern is continued down the entire length of the wooden poles.

The poles are 12 centimeters apart, and each small strip of balsa wood is 13 centimeters long.

If the two poles are each 100 centimeters long, how many small strips of balsa wood will they need to connect them?

Selena and Luis are building a model bridge out of balsa wood To make a strong bridge they create each post by laying out two long wooden poles horizontally as class=

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If the two poles are each 100 centimeters long, The number of  small strips of balsa wood they will need to connect them is: C. 20.

How to find the number of small strips?

Using Pythagorean theorem formula to find triangle side a.

a=√b²+c²

a = √ 13² - 12²

a = √ 169 - 144

a = √ 25

a = 5

Hence, the number of  small strips of balsa wood they need to connect them is:

100  / (2a)× 2

100 / ( 2×5) ×2

100/ 10 ×2

10 × 2

=20

Therefore the correct option is C.

Learn more about number of small strips here:https://brainly.com/question/16644694

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