What is the arc length of the subtending arc for an angle of 72 degrees on a circle of radius 4?

1 answer:

4 0

We know that

[the length of a circumference]=2*pi*r
for r= 4 units
[the length of a circumference]=2*pi*4--------------> 25.12 units

if a full circle (360°) has a length---------------------> 25.12 units
arc for an angle of 72 °---------------------------> X
X=72*25.12/360------------> 5.024 units

the answer is
<span>the length of the subtending arc for an angle of 72</span>° is 5.024 units

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