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Alex777 [14]
3 years ago
14

Help me answer this please!!! i will mark you brainliest

Mathematics
1 answer:
goldfiish [28.3K]3 years ago
4 0

Answer:

363 ft.

Step-by-step explanation:

To calculate the base side which is b we use the trigonometric identity called cosine.

cos \theta=\frac{base}{hypotenuse} \\\\cos25 = \frac{b}{400}\\\\b=400*cos 25\\b=400*0.906\\b=362.5\ ft

Since we the answer to the nearest whole number it would be b = 363 ft.

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