4 years ago

is it possible to have three points that would not fit on the same plane 2 dimensional surface? Why or why not

1 answer:

3 0

<span>No. Three points could be the three points of a triangle. Triangles are two dimensional surfaces. Therefore, any three points could exist on a two dimensional triangle.</span>

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3 years ago

The radius of a circle is 4 feet. What is the area of a sector bounded by a 45° arc?

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Step-by-step explanation:

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Required

Calculate the area of the sector

When angle is given in degrees, the area of sector is calculated as thus;

$Area = \frac{\theta}{360} * \pi * r^2$

$Substitute\ r = 4\ and\ \theta = 45$

$Area = \frac{\theta}{360} * \pi * r^2$ becomes

$Area = \frac{45}{360} * \pi * 4^2$

$Area = \frac{45}{360} * \pi * 16$

$Area = \frac{45*16}{360} * \pi$

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The above is the area in terms of π

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4 years ago