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lions [1.4K]
3 years ago
5

Is 1.52631579 a rational or irrational number

Mathematics
1 answer:
inna [77]3 years ago
8 0

It is a rational nimber

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A sector with a radius of 15 cm has a central angle measure of 8π/5 what is the area of the sector
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Answer:

area of the sector = 360π cm²

Step-by-step explanation:

To calculate the area of the sector, we will follow the steps below;

First write down the formula for calculating the area of a sector.

If angle Ф is measured in degree, then

area of sector = Ф/360   × πr²

but if angle Ф is measured in radians, then

area of sector = 1/2 × r² × Ф

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From the question given, radius = 15 cm  and angle Ф = 8π/5

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                         =1/2 ×225 × 8π/5

                          =360π cm²

area of the sector = 360π cm²

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The scale on a map is 1 in. : 15 mi. The distance between two cities is 25 mi. Find the distance in inches between the cities on
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3 years ago
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