For a circle with a radius of 15 cm, what is the length of an arc intercepted by an angle measuring 120°?
a)
51 cm
870 cm
107 cm
127 cm

or

Step-by-step explanation:

step 1

Find the circumference of the circle

The circumference of a circle is equal to

we have

substitute

step 2

Remember that the circumference of the circle subtends a central angle of 360 degrees

so

using proportion

Find the length of an arc by a central angle of 120 degrees

The exact value of the length of the arc is

assume

---> approximate value

kk.bj.

step-by-step explanation:

.mnm.kn.kj

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

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