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24 November, 10:34

Semicircle M has a radius of 15 inches. If an ant walks from A to B directly along diameter AB and a beetle

walks from A to B around ACB. how much farther, to the nearest tenth of an inch, does the beetle walk?

(1) 17.1

(2) 32.1

(3) 64.2

(4) 79.2

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Answers (1)
  1. 24 November, 12:52
    0
    A, 17.1 in

    Step-by-step explanation:

    circumference of sphere=2πr

    Beetle walks=πr=π*15=15π=15*3.14≈47.1 in

    Ant walks=d=2r=2*15=30

    difference=47.1-30=17.1 in
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