13r+23r=-2-1
36r=-3
r=-3/36
r=-1/12
Answer:6.28
Step-by-step explanation:
C=pi*diameter
C=3.14*2
C=6.28
Answer:
The answer is none triangle
Step-by-step explanation:
we know that
The sum of internal angles of a triangle must be equal to
In this problem we have three angles, each measuring
so
The total sum of the three angles is equal to
therefore
The answer is none triangle
Answer:
First find the circumference by pi r squared.
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