What is the circumference of the circle shown below, given that the length of AB (the minor arc) is 4?
C
30,
A
A. 48
B. 40
C. 24
d
D. 12

someone pls help no links

Given:

Length of arc AB is 4 units.

The measure of central angle corresponding to arc AB is 30 degrees.

To find:

The circumference of the circle.

Solution:

The formula for arc length is:

Where, r is the radius and is the central angle.

It is also written as:

Where, C is the circumference of the circle.

Putting in the above formula, we get

Multiply both sides by 12.

The circumference of the circle is 48 units.

Therefore, the correct option is A.

∠lno ≅ ∠lnm

∠oln ≅ ∠mln

step-by-step explanation:

given   that triangle lno is congruent to triangle lnm.

we have to fill up the blanks in the given question.

according to above order of congruency   kept in mind we can say that

∠lno ≅ ∠lnm

∠oln ≅ ∠mln

ln ≅ ln due to common in both.

hence, by sas congruency,

the side angle side rule   states that if two sides and the included angle of one triangle are congruent to another triangle, then these two triangles are congruent.

g

step-by-step explanation: