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Jlenok [28]
1 year ago
8

The radius of a semicircle is 3 kilometres. What is the semicircle's perimeter?

Mathematics
1 answer:
alina1380 [7]1 year ago
6 0

Answer:

In terms of Pi: 3\pi + 6 km

Exact value (rounded): 15.42477 km

Approximated (3.14): 15.42 km

Step-by-step explanation:

Hello!

A semicircle's perimeter can be found using the formula: P = \pi r + 2r

We can plug in the values to solve for the perimeter.

<h3>Solve</h3>
  • P = \pi r + 2r
  • P = \pi(3)+ 2(3)
  • P = 3\pi + 6

In terms of Pi, it is 3\pi + 6,

Exact value of Pi, it is 15.42477

Approximation of Pi (3.14), it is = 15.42

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Korvikt [17]

The center of the circle (x + 9)² + (y − 6)² = 10² is at (-9, 6) and the radius of the circle is 10 units.

<h3>What is a circle?</h3>

It is a locus of a point drawn an equidistant from the center. The distance from the center to the circumference is called the radius of the circle.

The equation of the circle is given as

(x + 9)² + (y − 6)² = 10²

Then the center of the circle is at (-9, 6) and the radius of the circle is 10 units.

More about the circle link is given below.

brainly.com/question/11833983

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2 years ago
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Answer:

vertex = (- 3, 5 )

Step-by-step explanation:

The general form of the absolute value function is

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7 0
3 years ago
Solve the inequality. Graph the solution
Evgen [1.6K]

Answer:

<em>t ≥ -12 </em>

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Step-by-step explanation:

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