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choli [55]
3 years ago
7

If YV = 28 in, find the length of the major arc VYX. Round to the nearest tenth ( one decimal place).

Mathematics
1 answer:
denpristay [2]3 years ago
7 0

Answer:

VYX=84.3in

Step-by-step explanation:

Given

YV = 28in

\angle WZX = 15^\circ

See attachment

Required

Determine the length of VYX

First, calculate the major angle VZX

\theta = \angle VZX = 360 - \angle WZX

\theta = \angle VZX = 360 - 15

\theta = \angle VZX = 345

\theta = 345

The length of arc VYX, is:

L=\frac{\theta}{360} * 2\pi r

Where

r = \frac{1}{2} * Diameter

r = \frac{1}{2} * YV

r = \frac{1}{2} * 28

r = 14

So:

L=\frac{\theta}{360} * 2\pi r

L=\frac{345}{360} * 2 * \frac{22}{7} *14

L=\frac{345}{360} * 2 * 22 *2

L=\frac{345* 2 * 22 *2}{360}

L=\frac{30360}{360}

L=84.3in

Hence, the length of VYX is:

VYX=84.3in

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