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Sagot :

Answer:

86°

Step-by-step explanation:

Normally, the building stands at an angle of 90° to the ground (from horizontal)

so,

x = 90° - 4° = 86°

X and 4° are complementary angles then their sum will be 90°.

[tex]\\ \sf\longmapsto x+4=90[/tex]

[tex]\\ \sf\longmapsto x=90-4[/tex]

[tex]\\ \sf\longmapsto x=86°[/tex]