170k views
5 votes
Find the arc length of a partial circle

Find the arc length of a partial circle-example-1
User Xcer
by
8.5k points

2 Answers

0 votes

Answer:

12.5664 units (rounded off to four decimal values)

Explanation:

Arc length = 2 × π × r ×
(central-angle)/(360)

For our partial circle;

The radius (r) = 8 units

The central angle = 90°

Arc length = 2 × π × 8 ×
(90)/(360) = 12.5663706144 units

Or 12.5664 units (rounded off to four decimal values)

User Salvatorelab
by
7.7k points
1 vote

Answer:

4π units or 12.56 units

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 4π units.

Or 4*3.14=12.56 units

User Saumyaraj
by
8.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories