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4 votes
A=1/2f(r+z), solve for r

User Czifro
by
7.8k points

1 Answer

3 votes

Answer:
(2A)/(f) -2=f

Explanation:

A=1/2(r+2)

2A=f(r+2)

2A/f=r+2

2A/f-2=r

User Nimer
by
7.5k points