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Nadya [2.5K]
3 years ago
8

Circle N is shown. Line segment M L is a diameter. The length of N L is 6. Everything above angle M N L is shaded. The measure o

f central angle MNL is π radians, and the measure of the entire circle is 2π radians. The ratio of the measure of the central angle to the entire circle measure is . The area of the entire circle is π units2. The area of the sector is π units2.
Mathematics
1 answer:
Fudgin [204]3 years ago
8 0

Answer:

The ratio of the measure of the central angle to the entire circle measure=\dfrac{1}{2}

The area of the entire circle=36\pi$ units^2.

The area of the sector =18\pi $ units^2

Step-by-step explanation:

MNL is a diameter of the circle N

Radius, NL =6

  • The measure of central angle MNL = π radians
  • The measure of the entire circle = 2π radians.

The ratio of the measure of the central angle to the entire circle measure

=\dfrac{\pi}{2\pi}\\\\ =\dfrac{1}{2}

Area of a circle =\pi r^2

The area of the entire circle

= \pi \times 6^2 \\=36\pi$ units^2.

Therefore, the area of the sector

=\dfrac{1}{2}  \times 36\pi\\=18\pi $ units^2

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