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3 years ago

A rectangle has a length of 34 and an area of 2930, what is its width?

Mathematics

2 answers:

lara31 [8.8K]3 years ago

6 0

You divide 2930 by 34 to get about 86.1765
(I think)

DanielleElmas [232]3 years ago

3 0

You can put this in an equation:
34w=2930
We have to find what w is, we can find that by dividing the area by its length.
2930÷34≈ 86.18
Its width is about 86.18 units.

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<h3>Area of sector of a circle</h3>

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$A = \frac{\theta}{2} *r^2$ ---- when the angle is in radians

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<h3>Examples of arc length</h3>

The length of an arc is calculated as:

$L= \frac{\theta}{360} * 2\pi r$ ---- when the angle is in degrees

$L = r\theta$ ---- when the angle is in radians

Take for instance, we have the following problems involving arc lengths

Calculate the length of an arc where the radius of the circle is 7, and

The central angle is 30 degrees
The central angle is π/12 rad
The central angle is 90 degrees
The central angle is π/4 rad
The central angle is 180 degrees

Using the above formulas, the arc lengths are:

1. $L = \frac{30}{360}* 2 * \frac{22}{7} * 7 = 3.7$

2. $L = \frac{\pi}{12} * 7 = 3.7$

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4. $L = \frac{\pi}{4} * 7 = 11$

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<h3>Examples of the arcs of a circle</h3>

The examples include:

A parabolic path
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Curved bridges
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Bows