What's the question. We need a question to help
Answer:
−3X−30
Step-by-step explanation:
Line FE is a radius of circle F. A radius is a line that connect to the center point ad is half of the circles diameter.
and
Line FC is a radius not a chord. A chord is a line within a circle that connects at two different point.
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Well 10 times 80 is 800 and dividing it by 9.8 gives us 81.63
Answer: 
Step-by-step explanation:
Given
Length of board is 
It is divided into 4 equal pieces i.e. length of each piece is
If 
of an inch is removed from one of the pieces then,
