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kati45 [8]
3 years ago
6

A lamp post is 10 ft tall and casts a shadow. The distance from the top of the lamp post to the tip of the shadow is 20 ft. What

is the angle of elevation to the top of the lamp post?

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
4 0

Answer:

30°

Step-by-step explanation:

Sin= 10/20

Sin= 0.5

Use your calculator then and type in 0.5 and hit the sin(-1) button and you get your answer.

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Can anybody help me please I'm stuck with this question.
tekilochka [14]

Answer: 18 units

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7 -1 = 6

line 2:

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line 3:

since this is a horizontal line x2 - x1

7 - 4 = 3

line 4:

for this we need to use the distance formula which allows us to find the distance making a third point to form a right angle triangle

point 1: (1,3)

point 2: (4,7)

point 3 (new point) : (4,3)

now we can apply the pythogorean thereum (C squared = B squared + A squared) with the following lines.

line 1: (1,3) - (4,7)

line 2: (1,3) - (4,3)

line 3: (4,3) - (4,7)

line 1 squared = line2 squared + line 3 squared

calculate length of line 2 and 3

line 1 squared = (4 - 1) squared + (7 - 3) squared

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root both sides

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