Correct Answer: Option C

Explanation

\(\pi r^2\) = 38.5
\(\frac{22}{7} r^2\) = 38.5
r\(^2\) = \(\frac{38.5 \times 7}{22}\)
r = \(\sqrt{12.25}\) = 3.5
diameter = 2r = 2 x 3.5 = 7cm

• a ship sails 340km in direction 225⁰, then sails 570km in the direction 035⁰. how far is the final position... Answer this

  2 Answers   ·   Mathematics   ·   1 day ago
• Calculate the mass of iron (ii) sulphide required to react with dilute HCl to provide 112cm3 of H2S gas at... Answer this

  3 Answers   ·   5 years ago
• I whant to know we're I supposed to be? Answer this

  1 Answers   ·   1 day ago