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Karo-lina-s [1.5K]
3 years ago
6

PLS HELP ME ASAP FOR 7 and 8!! (MUST SHOW WORK!!) + GIVING BRAINLIEST AND THANKS

Mathematics
2 answers:
VladimirAG [237]3 years ago
7 0
Question 7:

Diameter = 6.2 cm so Radius = 3.1 cm
A=πr² = 3.14 × 3.1² = 30.1754 cm² = 30.18 cm²

Question 8:

Circumference = 2πr
16π = 2πr
therefore 16 = 2r so r = 8cm 
Over [174]3 years ago
6 0
7. Area is diameter times pi so 6.2 x 3.14 = 19.468 so your answer is B.
8. Because the circumference is 16 pi all you have to do is divide 16 by 2 so your answer is C.
Hope this helps!
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