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vladimir1956 [14]
3 years ago
14

A car moves from A to B at a speed of 50 km/hr and comes back from B to A at a speed of 30 km/hr. Find its average speed during

the journey.
Mathematics
1 answer:
vredina [299]3 years ago
5 0
The average speed is 40km/hr. I hope this helped you!!
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(If It's a number like this: 8/9 then it's a fraction)

Answer:

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Step-by-step explanation:

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Which regular polygon has a minimum rotation of 45 degrees to carry the polygon onto itself?
lubasha [3.4K]

Answer:

Hence, a regular polygon that has a minimum rotation of 45 degrees to carry the polygon onto itself is:

A. octagon.

Step-by-step explanation:

We know that the for a regular polygon with 'n' sides the minimum rotation that can carry the polygon onto itself is:

\dfrac{360\degree}{n}

Here we are given the minimum angle of  rotation such that polygon is transformed to itself as 45 degree.

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Hence, the number of sides of a polygon are 8.

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( Since a polygon with 8 sides is called a octagon)

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