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VashaNatasha [74]
3 years ago
14

You ask an employee to string holiday lights around the perimeter of a circular room. The room is 30 feet in diameter. How many

feet of lights will she need?
Mathematics
1 answer:
Arturiano [62]3 years ago
3 0

Answer: 94.24 feet.


Step-by-step explanation:

1. To solve this exercise you must apply the formula for calculate the perimeter of a circle, which is shown below:

P=2r\pi

Where r is the radius of the circle.

2. You can calculate the radius of the circle by dividing the diameter by 2, as following:

r=\frac{30ft}{2}\\r=15ft

3. Substitute this value into the formula. Then, you obtain that the result is:

P=(2)(15ft)(\pi)\\P=94.24ft


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3 years ago
1. In the figure below ABC∡=153°, ABD∢=(5x+5)°, and DBC∢=(3x+12)°. Find the measure of ABD∢ and DBC∢. Show all work
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By angle addition postulate,

m(∠ABD) + m(∠DBC) = m(∠ABC)

Now substitute the values of each angle,

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(5x + 3x) + (5 + 12) = 153

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x = 17

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m(∠DBC) = (3x + 12)

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brainly.com/question/4838302

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