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Find the length of arc AB.

 

 Mar 6, 2021
 #1
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\(\frac{40}{360}\times \pi \times (8\times 2)\)

\(\frac{1}{9}\times \pi \times 16=\frac{16}{9}\times \pi\)

\(\pi=3.14\)

=>\(\frac{16}{9}\times 3.14=5.58222...\approx 5.58\)

Is this right?

 Mar 6, 2021
edited by Jamesaiden  Mar 6, 2021
 #2
avatar+31212 
+1

Total circumference =  pi d = 16 pi

 this is a fraction of total    40/360  * 16pi =    16/9 pi =~ 5.59  METERS    ( you only get 1/2 credit if you leave units off!)

 Mar 6, 2021

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