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Class 10 math (India)

Course: Class 10 math (India) > Unit 12

Lesson 3: Frustum of a cone
Math
Class 10 math (India)
Surface areas and volumes
Frustum of a cone
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Finding dimensions of a frustum

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Problem

The radii of the ends of a frustum of a cone are start color #1fab54, 6, start text, c, m, end text, end color #1fab54 and start color #11accd, 18, start text, c, m, end text, end color #11accd. The slant height of this frustum is start color #ca337c, 20, start text, space, c, m, end text, end color #ca337c.
What is the height of the frustum?
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
start text, c, m, end text
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