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I need to know how long arc BC is

I need to know how long arc BC is-example-1
User Esylvestre
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1 Answer

3 votes

Answer:

Arc length of arc BC is 6.98 units or roughly 7 units.

Explanation:

First recall that the formula for the circumference of a circle is C = 2πr, where r is the radius. Here the radius is 4 units. so the circumference of the (entire) circle is C = 2π(4 units) = 8π units.

The central angle for the arc shown in yellow is 100 degrees. The length of this arc is a fraction of C as found earlier:

100

------- * 8π units = 800π/360 units, or 6.98 units (about 7 units).

360

Arc length of arc BC is 6.98 units or roughly 7 units.

User Aguilarpgc
by
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