I just need help with B. Please help me. I will mark Beainliest.
2 answers:
Here we have to find the length of arc AB.
Length of an arc = ( central angle/360)×2 πr
= ( 64.6 / 360 ) × 2 × 5 miles × 22 / 7
= 0.179 × 220 miles / 7
= 39.38 miles / 7
= 5.625 miles.
The required answer is 5.625 miles.
Remark
The circumference of a complete circle = 2*pi*r
A part of the circumference = k * 2* pi * r / 360 where k is the measure of any central angle.
Givens
k = 64.6 degrees
r = 5 miles
Formula
Walking distance = k/360 * 2 * pi * r
Sub and Solve
Walking Distance = (64.6/360) * 2 * 3.14 * 5
Walking distance = 5.6346 miles
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