Question

Please look up photo for accurate description thank you in advance

Answer 1

To solve this question we will use the following diagram:

From the above diagram we get:

`\cos 38^(\circ)=(x)/(1m)\text{.}`

Therefore:

`x=\cos 38^(\circ)m\text{.}`

Since each panel must be separated by 0.3m, we get that the number of panels that we can put in 21 meters is:

`(21m)/(\cos38^(\circ)m+0.3m)\approx19.3\approx19.`

Answer: 19 panels will fit along the 21m side.