Multiple choice

The height of a cone is 15$\mathrm { cm } .$ If its volume is $1570 \mathrm { cm } ^ { 3 } ,$ find the radius of the base.

  1. $12cm$
  2. $10cm$
  3. $15 cm$
  4. $18 cm$
Reveal answer Fill a bubble to check yourself
B Correct answer
AI explanation

Using the cone volume formula, V = (1/3) pi r squared h, we set 1570 equal to (1/3) times 3.14 times r squared times 15. This simplifies to 1570 = 15.7 times r squared, so r squared equals 100. The radius is therefore 10 cm.

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