The circumference of circle C is 90 cm. What is the length of AB (in red)?
Help please
2 answers:
Answer:
30cm
Step-by-step explanation:
a circle is 360 degrees
120/360 = 1/3 the circumference
90 cm * 1/3 = 90 / 3 = 30
Answer:
30 cm
Step-by-step explanation:
The length of the arc AB is calculated as
circumference × fraction of circle subtended by AB, that is
AB = 90 × 
= 90 × 
= 30 cm
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