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NikAS [45]
3 years ago
8

Find the arc length of a partial circle

Mathematics
2 answers:
marusya05 [52]3 years ago
5 0

Answer:

12.5664 units (rounded off to four decimal values)

Step-by-step explanation:

Arc length = 2 × π × r × \frac{central-angle}{360}

For our partial circle;

The radius (r) = 8 units

The central angle = 90°

Arc length = 2 × π × 8 × \frac{90}{360} = 12.5663706144  units

Or 12.5664 units (rounded off to four decimal values)

IgorLugansk [536]3 years ago
5 0

Answer:

4π units or 12.56 units

Step-by-step explanation:

We want to find the arc length of 1/4 of the circle.Let's start by finding the circumference of the circle.

Circumference of the circle= 2πr

2π*8

8*2π

=16π

We now want to find the arc of the 1/4 of the circle.

The arc length is 1/4 of the circumference of the circle.

1/4*16π  

16/4π

=4π

The arc length of the partial circle is <u>4π  units.</u>

Or 4*3.14=<u>12.56 units</u>

​  

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