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dezoksy [38]
4 years ago
13

What is the radius of a circle with a sector area of 7 sq. ft. and an arc whose measure is 70°?

Mathematics
2 answers:
Radda [10]4 years ago
5 0
<span>the radius is </span>6 feet.
Murrr4er [49]4 years ago
4 0
360 degrees in circle
70/360 of full circle=7square feet
7/36 of full circle=7 squre feet
times both sides by 36/7
full circle=36 square feet

area=pir^2
36=pir^2
divide oth sides by pi (use 3.141592)
11.459=r^2
sqrt both sides
3.3851
about 3.4ft
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