Question

The circumference of Fis 120 cm. What is the length of DË (the minor arc)?

Answer 1

Answer:

15cm

Step-by-step explanation:

Let x be the arc circumference.

The circumference  of a circle usually subtends to 360°, that is, one complete revolution is 360°.

#Given the arc angle as 45° and the  circumference as 120cm, the arc circumference can be obtained as:

#Apply proportions to find x:

$360\textdegree=120cm\\45\textdegree=x\\\\x=(120/360)\times 45\\\\x=15cm$

Hence, the arc circumference is 15cm