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Olin [163]
3 years ago
15

The diameter of a circle is 10 cm what is the angle measure of an arc Pi centimeters long

Mathematics
1 answer:
vredina [299]3 years ago
8 0
We know that

[length of a circumference]=2*pi*r
diameter=10 cm
r=10/2-----> 5 cm
[length of a circumference]=2*pi*5-----> 10*pi cm

if 360° (full circle) has a length of -----------> 10*pi cm
 X°---------------------------> pi cm
X=pi*360/10*pi------> 36°

the answer is 36°
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