What is the length of MN?

2020-06-08 8:20 pm

回答 (1)

2020-06-08 8:43 pm
3.
Arc-MN
= Circumference × (105/360)
= 2 π r × (105/360)
= 2 × 3.1416 × 7 × (105/360)
= 15.1 (to nearest tenth)


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