Answer:
The angle of elevation of the sun is 38.65°.
Explanation:
Given a utility pole has height=40 ft and it creates a shadow of 5=ft.
Thus, in order to find the angle of elevation of the sun, let the angle of elevation of the sun be α, then
![tan{\alpha}=(AC)/(BC)](https://img.qammunity.org/2020/formulas/mathematics/high-school/oa3fy7a2lsswr6uy9ti7ct8qubt43yc1wr.png)
⇒
![tan{\alpha}=(40)/(50)](https://img.qammunity.org/2020/formulas/mathematics/high-school/wl0id6rad3w4bidrn5r8bbt3c1jz48cefp.png)
⇒
![tan{\alpha}=(4)/(5)](https://img.qammunity.org/2020/formulas/mathematics/high-school/ujt5nk7bsp7xndzcoptm76s87v2yj9qjnh.png)
⇒
![tan{\alpha}=0.8](https://img.qammunity.org/2020/formulas/mathematics/high-school/vosl2z4nmgvgfms768k2jo3n910byangpp.png)
⇒
![{\alpha}=tan^(-1)(0.8)](https://img.qammunity.org/2020/formulas/mathematics/high-school/fwbbvv4x8uw3rckqcrgfsm4seqcmo869hg.png)
⇒
![{\alpha}=38.65^{{\circ}}](https://img.qammunity.org/2020/formulas/mathematics/high-school/whqjgtwcga8m62iu30fedd6k9hlc1cltgg.png)
Thus, the angle of elevation of the sun is 38.65°.