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Nonamiya [84]
3 years ago
13

A 33 33 -ft ladder leans against a building so that the angle between the ground and the ladder is .

Mathematics
1 answer:
I am Lyosha [343]3 years ago
8 0

Question:

A 33 foot ladder leans against a building so that the angle between the ground and the ladder is 75º. How high does the ladder reach up the side of the building?

Round to 2 decimal places feet.

Answer:

H = 31.88

Step-by-step explanation:

The question is illustrated using the attachment as a sketch.

We have that

Ladder = 33ft

\theta = 75

Required

Determine how high the ladder is to the building

Represent the length of the ladder with L and how high the ladder is on the building with H.

The relationship between L, H and \theta is"

Sin\theta = \frac{H}{L}

Substitute values for L and \theta\\

Sin(75) = \frac{H}{33}

Make H the subject

H = 33 * Sin(75)

H = 33 * 0.9660

H = 31.88

<em>Hence, the height to which the ladder reaches is approximately 31.88ft</em>

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