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Angel Hernandez
Questions (3)
A circle has a radius of 20 cm. Which of these is closest to its area?
A 63 cm2 B 126 cm2 C 314 cm2 D 1257 cm2
1 answer
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A circle has a radius of 20 cm. Which of these is closest to its area?
1 answer
254 views
How many grams of NaF are needed to make 50 mL of a 2% aqueous solution?
2 answers
961 views
