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mart [117]
2 years ago
12

82.8cm measured to the nearest tenth of a centimetre.

Mathematics
1 answer:
RoseWind [281]2 years ago
6 0

Answer:

82.8 cm measured to the nearest tenth of 80cm.

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A pyramid has a regular hexagonal base with side lengths of 4 and a slant height of 6. Find the total area of the pyramid.
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Area of the Base = 6 * side^2 / 4 * tan (180/6)
Area of the Base = 6 * 16 / 4 * 0.57735
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3 years ago
Read 2 more answers
A guy wire supports an antenna tower, as shown at the right. The bottom of the wire is secured in the ground 30 feet from the ba
babunello [35]

Answer:

The wire is approximately 42feet long

Step-by-step explanation:

We can mentally sketch out the shape that is formed between the guy wire and the antenna tower. This is simply a right-angled triangle with the opposite side being the height of the antenna (30 feet). The adjacent side is the distance on the ground between the point where the wire was fastened and the base of the antenna.

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Parameters are given as:

Opposite : 30ft

Adjacent: 30ft

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The hypotenuse = \sqrt{opp^2 + adj^2}

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How to convert a repeating decimal to a fraction when only 1 digit is repeating?
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