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Sunny_sXe [5.5K]
3 years ago
13

How to find circumference of a circle​

Mathematics
2 answers:
forsale [732]3 years ago
5 0

Answer:

C=2πr

Step-by-step explanation:

The circumference of a circle can be found by multiplying pi ( π = 3.14 ) by the diameter of the circle.

If a circle has a diameter of 4, its circumference is 3.14*4=12.56.

If you know the radius, the diameter is twice as large.

Maksim231197 [3]3 years ago
4 0

Answer:

the formula is C = 2(pi)r

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The answer is obtuse

a = 4
b = 28
c = 31

If a² + b² > c²    -  the angle is acute
If a² + b² < c²    -  the angle is obtuse
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a² + b² = 4² + 28² = 16 + 784 = 800
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